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Finding the Fourth Proportional to 253,029.76, 379,531.68 and 75,538.24

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Solution

The fourth proportional to 253,029.76, 379,531.68 and 75,538.24 is: 113,303.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,029.76 : 379,531.68 = 75,538.24 : x
  2. Step 2: Convert to fraction form
    253,029.76/379,531.68 = 75,538.24/x
  3. Step 3: Cross multiply
    253,029.76x = 379,531.68 × 75,538.24
  4. Step 4: Simplify right side
    253,029.76x = 28,669,155,131.44
  5. Step 5: Solve for x
    x = 28,669,155,131.44/253,029.76
  6. Step 6: Final answer
    x = 113,303.49

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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.