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Finding the Fourth Proportional to 253,248.85, 379,893.39 and 84,770.07

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Solution

The fourth proportional to 253,248.85, 379,893.39 and 84,770.07 is: 127,161.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,248.85 : 379,893.39 = 84,770.07 : x
  2. Step 2: Convert to fraction form
    253,248.85/379,893.39 = 84,770.07/x
  3. Step 3: Cross multiply
    253,248.85x = 379,893.39 × 84,770.07
  4. Step 4: Simplify right side
    253,248.85x = 32,203,587,363.37
  5. Step 5: Solve for x
    x = 32,203,587,363.37/253,248.85
  6. Step 6: Final answer
    x = 127,161.83

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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.