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Finding the Fourth Proportional to 221,439.40, 332,159.10 and 204,332.20

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Solution

The fourth proportional to 221,439.40, 332,159.10 and 204,332.20 is: 306,498.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,439.40 : 332,159.10 = 204,332.20 : x
  2. Step 2: Convert to fraction form
    221,439.40/332,159.10 = 204,332.20/x
  3. Step 3: Cross multiply
    221,439.40x = 332,159.10 × 204,332.20
  4. Step 4: Simplify right side
    221,439.40x = 67,870,799,653.02
  5. Step 5: Solve for x
    x = 67,870,799,653.02/221,439.40
  6. Step 6: Final answer
    x = 306,498.30

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1.5x scale

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.