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Finding the Fourth Proportional to 397,180.20, 595,875.90 and 172,444.20

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Solution

The fourth proportional to 397,180.20, 595,875.90 and 172,444.20 is: 258,712.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,180.20 : 595,875.90 = 172,444.20 : x
  2. Step 2: Convert to fraction form
    397,180.20/595,875.90 = 172,444.20/x
  3. Step 3: Cross multiply
    397,180.20x = 595,875.90 × 172,444.20
  4. Step 4: Simplify right side
    397,180.20x = 102,755,342,874.78
  5. Step 5: Solve for x
    x = 102,755,342,874.78/397,180.20
  6. Step 6: Final answer
    x = 258,712.15

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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.