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Finding the Fourth Proportional to 288,131.22, 432,261 and 88,468.98

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Solution

The fourth proportional to 288,131.22, 432,261 and 88,468.98 is: 132,723.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,131.22 : 432,261 = 88,468.98 : x
  2. Step 2: Convert to fraction form
    288,131.22/432,261 = 88,468.98/x
  3. Step 3: Cross multiply
    288,131.22x = 432,261 × 88,468.98
  4. Step 4: Simplify right side
    288,131.22x = 38,241,689,763.78
  5. Step 5: Solve for x
    x = 38,241,689,763.78/288,131.22
  6. Step 6: Final answer
    x = 132,723.17

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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.