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Finding the Fourth Proportional to 288,095.60, 432,208.20 and 88,425.20

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Solution

The fourth proportional to 288,095.60, 432,208.20 and 88,425.20 is: 132,657.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,095.60 : 432,208.20 = 88,425.20 : x
  2. Step 2: Convert to fraction form
    288,095.60/432,208.20 = 88,425.20/x
  3. Step 3: Cross multiply
    288,095.60x = 432,208.20 × 88,425.20
  4. Step 4: Simplify right side
    288,095.60x = 38,218,096,526.64
  5. Step 5: Solve for x
    x = 38,218,096,526.64/288,095.60
  6. Step 6: Final answer
    x = 132,657.69

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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.