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Finding the Fourth Proportional to 253,446.84, 380,242.08 and 126,934.29

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Solution

The fourth proportional to 253,446.84, 380,242.08 and 126,934.29 is: 190,437.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,446.84 : 380,242.08 = 126,934.29 : x
  2. Step 2: Convert to fraction form
    253,446.84/380,242.08 = 126,934.29/x
  3. Step 3: Cross multiply
    253,446.84x = 380,242.08 × 126,934.29
  4. Step 4: Simplify right side
    253,446.84x = 48,265,758,452.92
  5. Step 5: Solve for x
    x = 48,265,758,452.92/253,446.84
  6. Step 6: Final answer
    x = 190,437.40

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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.