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Finding the Fourth Proportional to 442,125.46, 663,123.42 and 217,425.50

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Solution

The fourth proportional to 442,125.46, 663,123.42 and 217,425.50 is: 326,106.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,125.46 : 663,123.42 = 217,425.50 : x
  2. Step 2: Convert to fraction form
    442,125.46/663,123.42 = 217,425.50/x
  3. Step 3: Cross multiply
    442,125.46x = 663,123.42 × 217,425.50
  4. Step 4: Simplify right side
    442,125.46x = 144,179,941,155.21
  5. Step 5: Solve for x
    x = 144,179,941,155.21/442,125.46
  6. Step 6: Final answer
    x = 326,106.40

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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.