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Finding the Fourth Proportional to 318,098.80, 477,002.40 and 140,514.40

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Solution

The fourth proportional to 318,098.80, 477,002.40 and 140,514.40 is: 210,707.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,098.80 : 477,002.40 = 140,514.40 : x
  2. Step 2: Convert to fraction form
    318,098.80/477,002.40 = 140,514.40/x
  3. Step 3: Cross multiply
    318,098.80x = 477,002.40 × 140,514.40
  4. Step 4: Simplify right side
    318,098.80x = 67,025,706,034.56
  5. Step 5: Solve for x
    x = 67,025,706,034.56/318,098.80
  6. Step 6: Final answer
    x = 210,707.20

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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.