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Finding the Fourth Proportional to 253,000.55, 379,566.57 and 75,507.56

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Solution

The fourth proportional to 253,000.55, 379,566.57 and 75,507.56 is: 113,280.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,000.55 : 379,566.57 = 75,507.56 : x
  2. Step 2: Convert to fraction form
    253,000.55/379,566.57 = 75,507.56/x
  3. Step 3: Cross multiply
    253,000.55x = 379,566.57 × 75,507.56
  4. Step 4: Simplify right side
    253,000.55x = 28,660,146,660.20
  5. Step 5: Solve for x
    x = 28,660,146,660.20/253,000.55
  6. Step 6: Final answer
    x = 113,280.96

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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.