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Finding the Fourth Proportional to 247,398.37, 371,046.52 and 120,908.77

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Solution

The fourth proportional to 247,398.37, 371,046.52 and 120,908.77 is: 181,338.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,398.37 : 371,046.52 = 120,908.77 : x
  2. Step 2: Convert to fraction form
    247,398.37/371,046.52 = 120,908.77/x
  3. Step 3: Cross multiply
    247,398.37x = 371,046.52 × 120,908.77
  4. Step 4: Simplify right side
    247,398.37x = 44,862,778,345.98
  5. Step 5: Solve for x
    x = 44,862,778,345.98/247,398.37
  6. Step 6: Final answer
    x = 181,338.21

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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.