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Finding the Fourth Proportional to 352,344.30, 528,534.24 and 99,642.96

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Solution

The fourth proportional to 352,344.30, 528,534.24 and 99,642.96 is: 149,469.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,344.30 : 528,534.24 = 99,642.96 : x
  2. Step 2: Convert to fraction form
    352,344.30/528,534.24 = 99,642.96/x
  3. Step 3: Cross multiply
    352,344.30x = 528,534.24 × 99,642.96
  4. Step 4: Simplify right side
    352,344.30x = 52,664,716,134.95
  5. Step 5: Solve for x
    x = 52,664,716,134.95/352,344.30
  6. Step 6: Final answer
    x = 149,469.47

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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.