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Finding the Fourth Proportional to 576,761.30, 865,162.72 and 216,899.16

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Solution

The fourth proportional to 576,761.30, 865,162.72 and 216,899.16 is: 325,356.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,761.30 : 865,162.72 = 216,899.16 : x
  2. Step 2: Convert to fraction form
    576,761.30/865,162.72 = 216,899.16/x
  3. Step 3: Cross multiply
    576,761.30x = 865,162.72 × 216,899.16
  4. Step 4: Simplify right side
    576,761.30x = 187,653,061,821.01
  5. Step 5: Solve for x
    x = 187,653,061,821.01/576,761.30
  6. Step 6: Final answer
    x = 325,356.54

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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.