Home / 439,749.20-659,623.80-140,227.40

Finding the Fourth Proportional to 439,749.20, 659,623.80 and 140,227.40

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Solution

The fourth proportional to 439,749.20, 659,623.80 and 140,227.40 is: 210,341.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,749.20 : 659,623.80 = 140,227.40 : x
  2. Step 2: Convert to fraction form
    439,749.20/659,623.80 = 140,227.40/x
  3. Step 3: Cross multiply
    439,749.20x = 659,623.80 × 140,227.40
  4. Step 4: Simplify right side
    439,749.20x = 92,497,330,452.12
  5. Step 5: Solve for x
    x = 92,497,330,452.12/439,749.20
  6. Step 6: Final answer
    x = 210,341.10

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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.