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Finding the Fourth Proportional to 424,321.04, 636,434.04 and 108,785.36

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Solution

The fourth proportional to 424,321.04, 636,434.04 and 108,785.36 is: 163,165.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,321.04 : 636,434.04 = 108,785.36 : x
  2. Step 2: Convert to fraction form
    424,321.04/636,434.04 = 108,785.36/x
  3. Step 3: Cross multiply
    424,321.04x = 636,434.04 × 108,785.36
  4. Step 4: Simplify right side
    424,321.04x = 69,234,706,157.65
  5. Step 5: Solve for x
    x = 69,234,706,157.65/424,321.04
  6. Step 6: Final answer
    x = 163,165.86

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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.