Home / 330,492.20-456,078.02-187,279.62

Finding the Fourth Proportional to 330,492.20, 456,078.02 and 187,279.62

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Solution

The fourth proportional to 330,492.20, 456,078.02 and 187,279.62 is: 258,445.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,492.20 : 456,078.02 = 187,279.62 : x
  2. Step 2: Convert to fraction form
    330,492.20/456,078.02 = 187,279.62/x
  3. Step 3: Cross multiply
    330,492.20x = 456,078.02 × 187,279.62
  4. Step 4: Simplify right side
    330,492.20x = 85,414,118,275.95
  5. Step 5: Solve for x
    x = 85,414,118,275.95/330,492.20
  6. Step 6: Final answer
    x = 258,445.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.