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Finding the Fourth Proportional to 372,649.60, 558,974.40 and 214,748.20

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Solution

The fourth proportional to 372,649.60, 558,974.40 and 214,748.20 is: 322,122.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,649.60 : 558,974.40 = 214,748.20 : x
  2. Step 2: Convert to fraction form
    372,649.60/558,974.40 = 214,748.20/x
  3. Step 3: Cross multiply
    372,649.60x = 558,974.40 × 214,748.20
  4. Step 4: Simplify right side
    372,649.60x = 120,038,746,246.08
  5. Step 5: Solve for x
    x = 120,038,746,246.08/372,649.60
  6. Step 6: Final answer
    x = 322,122.30

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Similar ratio
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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.