Home / 631,655.20-947,382.56-205,201.14

Finding the Fourth Proportional to 631,655.20, 947,382.56 and 205,201.14

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Solution

The fourth proportional to 631,655.20, 947,382.56 and 205,201.14 is: 307,769.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,655.20 : 947,382.56 = 205,201.14 : x
  2. Step 2: Convert to fraction form
    631,655.20/947,382.56 = 205,201.14/x
  3. Step 3: Cross multiply
    631,655.20x = 947,382.56 × 205,201.14
  4. Step 4: Simplify right side
    631,655.20x = 194,403,981,328.12
  5. Step 5: Solve for x
    x = 194,403,981,328.12/631,655.20
  6. Step 6: Final answer
    x = 307,769.15

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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.