Home / 410,948.32-616,562.52-221,428.12

Finding the Fourth Proportional to 410,948.32, 616,562.52 and 221,428.12

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Solution

The fourth proportional to 410,948.32, 616,562.52 and 221,428.12 is: 332,217.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,948.32 : 616,562.52 = 221,428.12 : x
  2. Step 2: Convert to fraction form
    410,948.32/616,562.52 = 221,428.12/x
  3. Step 3: Cross multiply
    410,948.32x = 616,562.52 × 221,428.12
  4. Step 4: Simplify right side
    410,948.32x = 136,524,279,666.06
  5. Step 5: Solve for x
    x = 136,524,279,666.06/410,948.32
  6. Step 6: Final answer
    x = 332,217.64

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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.