Home / 314,971.20-472,154.40-104,500.80

Finding the Fourth Proportional to 314,971.20, 472,154.40 and 104,500.80

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Solution

The fourth proportional to 314,971.20, 472,154.40 and 104,500.80 is: 156,650.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,971.20 : 472,154.40 = 104,500.80 : x
  2. Step 2: Convert to fraction form
    314,971.20/472,154.40 = 104,500.80/x
  3. Step 3: Cross multiply
    314,971.20x = 472,154.40 × 104,500.80
  4. Step 4: Simplify right side
    314,971.20x = 49,340,512,523.52
  5. Step 5: Solve for x
    x = 49,340,512,523.52/314,971.20
  6. Step 6: Final answer
    x = 156,650.87

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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.