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Finding the Fourth Proportional to 631,203.20, 946,804.80 and 157,888.56

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Solution

The fourth proportional to 631,203.20, 946,804.80 and 157,888.56 is: 236,832.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,203.20 : 946,804.80 = 157,888.56 : x
  2. Step 2: Convert to fraction form
    631,203.20/946,804.80 = 157,888.56/x
  3. Step 3: Cross multiply
    631,203.20x = 946,804.80 × 157,888.56
  4. Step 4: Simplify right side
    631,203.20x = 149,489,646,473.09
  5. Step 5: Solve for x
    x = 149,489,646,473.09/631,203.20
  6. Step 6: Final answer
    x = 236,832.84

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.