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Finding the Fourth Proportional to 253,211.20, 379,579.20 and 95,545.60

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Solution

The fourth proportional to 253,211.20, 379,579.20 and 95,545.60 is: 143,228.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,211.20 : 379,579.20 = 95,545.60 : x
  2. Step 2: Convert to fraction form
    253,211.20/379,579.20 = 95,545.60/x
  3. Step 3: Cross multiply
    253,211.20x = 379,579.20 × 95,545.60
  4. Step 4: Simplify right side
    253,211.20x = 36,267,122,411.52
  5. Step 5: Solve for x
    x = 36,267,122,411.52/253,211.20
  6. Step 6: Final answer
    x = 143,228.75

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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.