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Finding the Fourth Proportional to 500,246.89, 750,391.09 and 145,260.91

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Solution

The fourth proportional to 500,246.89, 750,391.09 and 145,260.91 is: 217,897.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,246.89 : 750,391.09 = 145,260.91 : x
  2. Step 2: Convert to fraction form
    500,246.89/750,391.09 = 145,260.91/x
  3. Step 3: Cross multiply
    500,246.89x = 750,391.09 × 145,260.91
  4. Step 4: Simplify right side
    500,246.89x = 109,002,489,018.91
  5. Step 5: Solve for x
    x = 109,002,489,018.91/500,246.89
  6. Step 6: Final answer
    x = 217,897.39

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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.