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Finding the Fourth Proportional to 286,008.74, 429,126.11 and 108,562.85

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Solution

The fourth proportional to 286,008.74, 429,126.11 and 108,562.85 is: 162,887.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,008.74 : 429,126.11 = 108,562.85 : x
  2. Step 2: Convert to fraction form
    286,008.74/429,126.11 = 108,562.85/x
  3. Step 3: Cross multiply
    286,008.74x = 429,126.11 × 108,562.85
  4. Step 4: Simplify right side
    286,008.74x = 46,587,154,855.24
  5. Step 5: Solve for x
    x = 46,587,154,855.24/286,008.74
  6. Step 6: Final answer
    x = 162,887.17

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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.