Home / 270,778.20-406,167.30-71,085.40

Finding the Fourth Proportional to 270,778.20, 406,167.30 and 71,085.40

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Solution

The fourth proportional to 270,778.20, 406,167.30 and 71,085.40 is: 106,628.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,778.20 : 406,167.30 = 71,085.40 : x
  2. Step 2: Convert to fraction form
    270,778.20/406,167.30 = 71,085.40/x
  3. Step 3: Cross multiply
    270,778.20x = 406,167.30 × 71,085.40
  4. Step 4: Simplify right side
    270,778.20x = 28,872,564,987.42
  5. Step 5: Solve for x
    x = 28,872,564,987.42/270,778.20
  6. Step 6: Final answer
    x = 106,628.10

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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.