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Finding the Fourth Proportional to 272,553.60, 408,830.40 and 72,904.80

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Solution

The fourth proportional to 272,553.60, 408,830.40 and 72,904.80 is: 109,357.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,553.60 : 408,830.40 = 72,904.80 : x
  2. Step 2: Convert to fraction form
    272,553.60/408,830.40 = 72,904.80/x
  3. Step 3: Cross multiply
    272,553.60x = 408,830.40 × 72,904.80
  4. Step 4: Simplify right side
    272,553.60x = 29,805,698,545.92
  5. Step 5: Solve for x
    x = 29,805,698,545.92/272,553.60
  6. Step 6: Final answer
    x = 109,357.20

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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.