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Finding the Fourth Proportional to 207,287.48, 310,996.56 and 157,605.32

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Solution

The fourth proportional to 207,287.48, 310,996.56 and 157,605.32 is: 236,457.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,287.48 : 310,996.56 = 157,605.32 : x
  2. Step 2: Convert to fraction form
    207,287.48/310,996.56 = 157,605.32/x
  3. Step 3: Cross multiply
    207,287.48x = 310,996.56 × 157,605.32
  4. Step 4: Simplify right side
    207,287.48x = 49,014,712,357.70
  5. Step 5: Solve for x
    x = 49,014,712,357.70/207,287.48
  6. Step 6: Final answer
    x = 236,457.66

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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.