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Finding the Fourth Proportional to 288,588.78, 432,930.51 and 88,904.70

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Solution

The fourth proportional to 288,588.78, 432,930.51 and 88,904.70 is: 133,371.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,588.78 : 432,930.51 = 88,904.70 : x
  2. Step 2: Convert to fraction form
    288,588.78/432,930.51 = 88,904.70/x
  3. Step 3: Cross multiply
    288,588.78x = 432,930.51 × 88,904.70
  4. Step 4: Simplify right side
    288,588.78x = 38,489,557,112.40
  5. Step 5: Solve for x
    x = 38,489,557,112.40/288,588.78
  6. Step 6: Final answer
    x = 133,371.63

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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.