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Finding the Fourth Proportional to 287,592.96, 431,450.88 and 100,610.56

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Solution

The fourth proportional to 287,592.96, 431,450.88 and 100,610.56 is: 150,937.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,592.96 : 431,450.88 = 100,610.56 : x
  2. Step 2: Convert to fraction form
    287,592.96/431,450.88 = 100,610.56/x
  3. Step 3: Cross multiply
    287,592.96x = 431,450.88 × 100,610.56
  4. Step 4: Simplify right side
    287,592.96x = 43,408,514,649.29
  5. Step 5: Solve for x
    x = 43,408,514,649.29/287,592.96
  6. Step 6: Final answer
    x = 150,937.33

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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.