Home / 457,901.22-631,905.54-253,971.18

Finding the Fourth Proportional to 457,901.22, 631,905.54 and 253,971.18

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Solution

The fourth proportional to 457,901.22, 631,905.54 and 253,971.18 is: 350,481.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,901.22 : 631,905.54 = 253,971.18 : x
  2. Step 2: Convert to fraction form
    457,901.22/631,905.54 = 253,971.18/x
  3. Step 3: Cross multiply
    457,901.22x = 631,905.54 × 253,971.18
  4. Step 4: Simplify right side
    457,901.22x = 160,485,795,642.34
  5. Step 5: Solve for x
    x = 160,485,795,642.34/457,901.22
  6. Step 6: Final answer
    x = 350,481.26

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.