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Finding the Fourth Proportional to 253,020.76, 379,518.18 and 75,529.24

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Solution

The fourth proportional to 253,020.76, 379,518.18 and 75,529.24 is: 113,289.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,020.76 : 379,518.18 = 75,529.24 : x
  2. Step 2: Convert to fraction form
    253,020.76/379,518.18 = 75,529.24/x
  3. Step 3: Cross multiply
    253,020.76x = 379,518.18 × 75,529.24
  4. Step 4: Simplify right side
    253,020.76x = 28,664,719,701.58
  5. Step 5: Solve for x
    x = 28,664,719,701.58/253,020.76
  6. Step 6: Final answer
    x = 113,289.99

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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.