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Finding the Fourth Proportional to 145,254.80, 217,894.75 and 40,073.77

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Solution

The fourth proportional to 145,254.80, 217,894.75 and 40,073.77 is: 60,114.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,254.80 : 217,894.75 = 40,073.77 : x
  2. Step 2: Convert to fraction form
    145,254.80/217,894.75 = 40,073.77/x
  3. Step 3: Cross multiply
    145,254.80x = 217,894.75 × 40,073.77
  4. Step 4: Simplify right side
    145,254.80x = 8,731,862,805.86
  5. Step 5: Solve for x
    x = 8,731,862,805.86/145,254.80
  6. Step 6: Final answer
    x = 60,114.11

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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.