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Finding the Fourth Proportional to 187,007.90, 280,511.85 and 60,647.90

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Solution

The fourth proportional to 187,007.90, 280,511.85 and 60,647.90 is: 90,971.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,007.90 : 280,511.85 = 60,647.90 : x
  2. Step 2: Convert to fraction form
    187,007.90/280,511.85 = 60,647.90/x
  3. Step 3: Cross multiply
    187,007.90x = 280,511.85 × 60,647.90
  4. Step 4: Simplify right side
    187,007.90x = 17,012,454,627.62
  5. Step 5: Solve for x
    x = 17,012,454,627.62/187,007.90
  6. Step 6: Final answer
    x = 90,971.85

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.