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Finding the Fourth Proportional to 400,365.92, 552,411.96 and 239,273.12

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Solution

The fourth proportional to 400,365.92, 552,411.96 and 239,273.12 is: 330,141.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,365.92 : 552,411.96 = 239,273.12 : x
  2. Step 2: Convert to fraction form
    400,365.92/552,411.96 = 239,273.12/x
  3. Step 3: Cross multiply
    400,365.92x = 552,411.96 × 239,273.12
  4. Step 4: Simplify right side
    400,365.92x = 132,177,333,194.52
  5. Step 5: Solve for x
    x = 132,177,333,194.52/400,365.92
  6. Step 6: Final answer
    x = 330,141.32

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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.