Home / 314,819.60-472,229.40-127,965.20

Finding the Fourth Proportional to 314,819.60, 472,229.40 and 127,965.20

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Solution

The fourth proportional to 314,819.60, 472,229.40 and 127,965.20 is: 191,947.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,819.60 : 472,229.40 = 127,965.20 : x
  2. Step 2: Convert to fraction form
    314,819.60/472,229.40 = 127,965.20/x
  3. Step 3: Cross multiply
    314,819.60x = 472,229.40 × 127,965.20
  4. Step 4: Simplify right side
    314,819.60x = 60,428,929,616.88
  5. Step 5: Solve for x
    x = 60,428,929,616.88/314,819.60
  6. Step 6: Final answer
    x = 191,947.80

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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.