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Finding the Fourth Proportional to 253,254.42, 379,894.32 and 75,762.90

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Solution

The fourth proportional to 253,254.42, 379,894.32 and 75,762.90 is: 113,648.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,254.42 : 379,894.32 = 75,762.90 : x
  2. Step 2: Convert to fraction form
    253,254.42/379,894.32 = 75,762.90/x
  3. Step 3: Cross multiply
    253,254.42x = 379,894.32 × 75,762.90
  4. Step 4: Simplify right side
    253,254.42x = 28,781,895,376.73
  5. Step 5: Solve for x
    x = 28,781,895,376.73/253,254.42
  6. Step 6: Final answer
    x = 113,648.15

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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.