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Finding the Fourth Proportional to 288,049.40, 432,074.10 and 267,054.20

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Solution

The fourth proportional to 288,049.40, 432,074.10 and 267,054.20 is: 400,581.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,049.40 : 432,074.10 = 267,054.20 : x
  2. Step 2: Convert to fraction form
    288,049.40/432,074.10 = 267,054.20/x
  3. Step 3: Cross multiply
    288,049.40x = 432,074.10 × 267,054.20
  4. Step 4: Simplify right side
    288,049.40x = 115,387,203,116.22
  5. Step 5: Solve for x
    x = 115,387,203,116.22/288,049.40
  6. Step 6: Final answer
    x = 400,581.30

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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.