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Finding the Fourth Proportional to 279,209.85, 418,814.81 and 195,134.22

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Solution

The fourth proportional to 279,209.85, 418,814.81 and 195,134.22 is: 292,701.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,209.85 : 418,814.81 = 195,134.22 : x
  2. Step 2: Convert to fraction form
    279,209.85/418,814.81 = 195,134.22/x
  3. Step 3: Cross multiply
    279,209.85x = 418,814.81 × 195,134.22
  4. Step 4: Simplify right side
    279,209.85x = 81,725,100,298.13
  5. Step 5: Solve for x
    x = 81,725,100,298.13/279,209.85
  6. Step 6: Final answer
    x = 292,701.35

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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.