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Finding the Fourth Proportional to 253,479.15, 380,218.73 and 251,729.55

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Solution

The fourth proportional to 253,479.15, 380,218.73 and 251,729.55 is: 377,594.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,479.15 : 380,218.73 = 251,729.55 : x
  2. Step 2: Convert to fraction form
    253,479.15/380,218.73 = 251,729.55/x
  3. Step 3: Cross multiply
    253,479.15x = 380,218.73 × 251,729.55
  4. Step 4: Simplify right side
    253,479.15x = 95,712,288,545.82
  5. Step 5: Solve for x
    x = 95,712,288,545.82/253,479.15
  6. Step 6: Final answer
    x = 377,594.33

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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.