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Finding the Fourth Proportional to 208,325.82, 287,489.52 and 112,832.52

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Solution

The fourth proportional to 208,325.82, 287,489.52 and 112,832.52 is: 155,708.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,325.82 : 287,489.52 = 112,832.52 : x
  2. Step 2: Convert to fraction form
    208,325.82/287,489.52 = 112,832.52/x
  3. Step 3: Cross multiply
    208,325.82x = 287,489.52 × 112,832.52
  4. Step 4: Simplify right side
    208,325.82x = 32,438,167,015.19
  5. Step 5: Solve for x
    x = 32,438,167,015.19/208,325.82
  6. Step 6: Final answer
    x = 155,708.82

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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.