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Finding the Fourth Proportional to 288,529.29, 432,636.59 and 88,796.66

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Solution

The fourth proportional to 288,529.29, 432,636.59 and 88,796.66 is: 133,146.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,529.29 : 432,636.59 = 88,796.66 : x
  2. Step 2: Convert to fraction form
    288,529.29/432,636.59 = 88,796.66/x
  3. Step 3: Cross multiply
    288,529.29x = 432,636.59 × 88,796.66
  4. Step 4: Simplify right side
    288,529.29x = 38,416,682,244.60
  5. Step 5: Solve for x
    x = 38,416,682,244.60/288,529.29
  6. Step 6: Final answer
    x = 133,146.56

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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.