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Finding the Fourth Proportional to 269,589.77, 372,035.12 and 148,731

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Solution

The fourth proportional to 269,589.77, 372,035.12 and 148,731 is: 205,249.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,589.77 : 372,035.12 = 148,731 : x
  2. Step 2: Convert to fraction form
    269,589.77/372,035.12 = 148,731/x
  3. Step 3: Cross multiply
    269,589.77x = 372,035.12 × 148,731
  4. Step 4: Simplify right side
    269,589.77x = 55,333,154,689.07
  5. Step 5: Solve for x
    x = 55,333,154,689.07/269,589.77
  6. Step 6: Final answer
    x = 205,249.46

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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.