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Finding the Fourth Proportional to 269,635.93, 372,105.37 and 148,785

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Solution

The fourth proportional to 269,635.93, 372,105.37 and 148,785 is: 205,327.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,635.93 : 372,105.37 = 148,785 : x
  2. Step 2: Convert to fraction form
    269,635.93/372,105.37 = 148,785/x
  3. Step 3: Cross multiply
    269,635.93x = 372,105.37 × 148,785
  4. Step 4: Simplify right side
    269,635.93x = 55,363,697,475.45
  5. Step 5: Solve for x
    x = 55,363,697,475.45/269,635.93
  6. Step 6: Final answer
    x = 205,327.60

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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.