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Finding the Fourth Proportional to 288,447.45, 432,712.14 and 88,784.46

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Solution

The fourth proportional to 288,447.45, 432,712.14 and 88,784.46 is: 133,189.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,447.45 : 432,712.14 = 88,784.46 : x
  2. Step 2: Convert to fraction form
    288,447.45/432,712.14 = 88,784.46/x
  3. Step 3: Cross multiply
    288,447.45x = 432,712.14 × 88,784.46
  4. Step 4: Simplify right side
    288,447.45x = 38,418,113,685.34
  5. Step 5: Solve for x
    x = 38,418,113,685.34/288,447.45
  6. Step 6: Final answer
    x = 133,189.30

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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.