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Finding the Fourth Proportional to 288,002.90, 432,004.35 and 267,007.70

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Solution

The fourth proportional to 288,002.90, 432,004.35 and 267,007.70 is: 400,511.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,002.90 : 432,004.35 = 267,007.70 : x
  2. Step 2: Convert to fraction form
    288,002.90/432,004.35 = 267,007.70/x
  3. Step 3: Cross multiply
    288,002.90x = 432,004.35 × 267,007.70
  4. Step 4: Simplify right side
    288,002.90x = 115,348,487,883.50
  5. Step 5: Solve for x
    x = 115,348,487,883.50/288,002.90
  6. Step 6: Final answer
    x = 400,511.55

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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.