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Finding the Fourth Proportional to 208,383.74, 312,233.88 and 88,344.77

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Solution

The fourth proportional to 208,383.74, 312,233.88 and 88,344.77 is: 132,372.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,383.74 : 312,233.88 = 88,344.77 : x
  2. Step 2: Convert to fraction form
    208,383.74/312,233.88 = 88,344.77/x
  3. Step 3: Cross multiply
    208,383.74x = 312,233.88 × 88,344.77
  4. Step 4: Simplify right side
    208,383.74x = 27,584,230,314.81
  5. Step 5: Solve for x
    x = 27,584,230,314.81/208,383.74
  6. Step 6: Final answer
    x = 132,372.28

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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.