Home / 439,792.20-659,688.30-140,294.70

Finding the Fourth Proportional to 439,792.20, 659,688.30 and 140,294.70

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Solution

The fourth proportional to 439,792.20, 659,688.30 and 140,294.70 is: 210,442.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,792.20 : 659,688.30 = 140,294.70 : x
  2. Step 2: Convert to fraction form
    439,792.20/659,688.30 = 140,294.70/x
  3. Step 3: Cross multiply
    439,792.20x = 659,688.30 × 140,294.70
  4. Step 4: Simplify right side
    439,792.20x = 92,550,772,142.01
  5. Step 5: Solve for x
    x = 92,550,772,142.01/439,792.20
  6. Step 6: Final answer
    x = 210,442.05

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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.