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Finding the Fourth Proportional to 288,376.80, 432,597.60 and 88,695.60

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Solution

The fourth proportional to 288,376.80, 432,597.60 and 88,695.60 is: 133,053.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,376.80 : 432,597.60 = 88,695.60 : x
  2. Step 2: Convert to fraction form
    288,376.80/432,597.60 = 88,695.60/x
  3. Step 3: Cross multiply
    288,376.80x = 432,597.60 × 88,695.60
  4. Step 4: Simplify right side
    288,376.80x = 38,369,503,690.56
  5. Step 5: Solve for x
    x = 38,369,503,690.56/288,376.80
  6. Step 6: Final answer
    x = 133,053.37

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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.