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Finding the Fourth Proportional to 208,441.62, 287,650.44 and 112,948.29

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Solution

The fourth proportional to 208,441.62, 287,650.44 and 112,948.29 is: 155,869.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,441.62 : 287,650.44 = 112,948.29 : x
  2. Step 2: Convert to fraction form
    208,441.62/287,650.44 = 112,948.29/x
  3. Step 3: Cross multiply
    208,441.62x = 287,650.44 × 112,948.29
  4. Step 4: Simplify right side
    208,441.62x = 32,489,625,315.75
  5. Step 5: Solve for x
    x = 32,489,625,315.75/208,441.62
  6. Step 6: Final answer
    x = 155,869.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.