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Finding the Fourth Proportional to 253,334.70, 379,892.70 and 126,926.10

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Solution

The fourth proportional to 253,334.70, 379,892.70 and 126,926.10 is: 190,334.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,334.70 : 379,892.70 = 126,926.10 : x
  2. Step 2: Convert to fraction form
    253,334.70/379,892.70 = 126,926.10/x
  3. Step 3: Cross multiply
    253,334.70x = 379,892.70 × 126,926.10
  4. Step 4: Simplify right side
    253,334.70x = 48,218,298,829.47
  5. Step 5: Solve for x
    x = 48,218,298,829.47/253,334.70
  6. Step 6: Final answer
    x = 190,334.36

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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.