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Finding the Fourth Proportional to 424,234.30, 636,337.05 and 108,694.30

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Solution

The fourth proportional to 424,234.30, 636,337.05 and 108,694.30 is: 163,037.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,234.30 : 636,337.05 = 108,694.30 : x
  2. Step 2: Convert to fraction form
    424,234.30/636,337.05 = 108,694.30/x
  3. Step 3: Cross multiply
    424,234.30x = 636,337.05 × 108,694.30
  4. Step 4: Simplify right side
    424,234.30x = 69,166,210,213.82
  5. Step 5: Solve for x
    x = 69,166,210,213.82/424,234.30
  6. Step 6: Final answer
    x = 163,037.76

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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.