Home / 393,631.92-590,456.93-140,929.74

Finding the Fourth Proportional to 393,631.92, 590,456.93 and 140,929.74

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Solution

The fourth proportional to 393,631.92, 590,456.93 and 140,929.74 is: 211,397.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,631.92 : 590,456.93 = 140,929.74 : x
  2. Step 2: Convert to fraction form
    393,631.92/590,456.93 = 140,929.74/x
  3. Step 3: Cross multiply
    393,631.92x = 590,456.93 × 140,929.74
  4. Step 4: Simplify right side
    393,631.92x = 83,212,940,921.45
  5. Step 5: Solve for x
    x = 83,212,940,921.45/393,631.92
  6. Step 6: Final answer
    x = 211,397.85

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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.