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Finding the Fourth Proportional to 253,013.76, 379,507.68 and 75,522.24

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Solution

The fourth proportional to 253,013.76, 379,507.68 and 75,522.24 is: 113,279.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,013.76 : 379,507.68 = 75,522.24 : x
  2. Step 2: Convert to fraction form
    253,013.76/379,507.68 = 75,522.24/x
  3. Step 3: Cross multiply
    253,013.76x = 379,507.68 × 75,522.24
  4. Step 4: Simplify right side
    253,013.76x = 28,661,270,090.80
  5. Step 5: Solve for x
    x = 28,661,270,090.80/253,013.76
  6. Step 6: Final answer
    x = 113,279.49

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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.