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Finding the Fourth Proportional to 250,911.38, 375,874.98 and 145,508.91

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Solution

The fourth proportional to 250,911.38, 375,874.98 and 145,508.91 is: 217,978.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,911.38 : 375,874.98 = 145,508.91 : x
  2. Step 2: Convert to fraction form
    250,911.38/375,874.98 = 145,508.91/x
  3. Step 3: Cross multiply
    250,911.38x = 375,874.98 × 145,508.91
  4. Step 4: Simplify right side
    250,911.38x = 54,693,158,636.07
  5. Step 5: Solve for x
    x = 54,693,158,636.07/250,911.38
  6. Step 6: Final answer
    x = 217,978.00

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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.