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Finding the Fourth Proportional to 247,788.62, 341,920.88 and 137,404.50

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Solution

The fourth proportional to 247,788.62, 341,920.88 and 137,404.50 is: 189,603.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,788.62 : 341,920.88 = 137,404.50 : x
  2. Step 2: Convert to fraction form
    247,788.62/341,920.88 = 137,404.50/x
  3. Step 3: Cross multiply
    247,788.62x = 341,920.88 × 137,404.50
  4. Step 4: Simplify right side
    247,788.62x = 46,981,467,555.96
  5. Step 5: Solve for x
    x = 46,981,467,555.96/247,788.62
  6. Step 6: Final answer
    x = 189,603.01

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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.