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Finding the Fourth Proportional to 172,280.52, 258,400.26 and 45,930.24

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Solution

The fourth proportional to 172,280.52, 258,400.26 and 45,930.24 is: 68,889.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,280.52 : 258,400.26 = 45,930.24 : x
  2. Step 2: Convert to fraction form
    172,280.52/258,400.26 = 45,930.24/x
  3. Step 3: Cross multiply
    172,280.52x = 258,400.26 × 45,930.24
  4. Step 4: Simplify right side
    172,280.52x = 11,868,385,957.86
  5. Step 5: Solve for x
    x = 11,868,385,957.86/172,280.52
  6. Step 6: Final answer
    x = 68,889.89

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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.