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Finding the Fourth Proportional to 247,670.87, 371,386.13 and 121,162.94

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Solution

The fourth proportional to 247,670.87, 371,386.13 and 121,162.94 is: 181,685.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,670.87 : 371,386.13 = 121,162.94 : x
  2. Step 2: Convert to fraction form
    247,670.87/371,386.13 = 121,162.94/x
  3. Step 3: Cross multiply
    247,670.87x = 371,386.13 × 121,162.94
  4. Step 4: Simplify right side
    247,670.87x = 44,998,235,386.02
  5. Step 5: Solve for x
    x = 44,998,235,386.02/247,670.87
  6. Step 6: Final answer
    x = 181,685.62

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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.