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Finding the Fourth Proportional to 288,575.40, 432,863.10 and 267,580.20

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Solution

The fourth proportional to 288,575.40, 432,863.10 and 267,580.20 is: 401,370.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,575.40 : 432,863.10 = 267,580.20 : x
  2. Step 2: Convert to fraction form
    288,575.40/432,863.10 = 267,580.20/x
  3. Step 3: Cross multiply
    288,575.40x = 432,863.10 × 267,580.20
  4. Step 4: Simplify right side
    288,575.40x = 115,825,594,870.62
  5. Step 5: Solve for x
    x = 115,825,594,870.62/288,575.40
  6. Step 6: Final answer
    x = 401,370.30

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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.