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Finding the Fourth Proportional to 269,804.10, 372,330.20 and 148,945.55

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Solution

The fourth proportional to 269,804.10, 372,330.20 and 148,945.55 is: 205,545.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,804.10 : 372,330.20 = 148,945.55 : x
  2. Step 2: Convert to fraction form
    269,804.10/372,330.20 = 148,945.55/x
  3. Step 3: Cross multiply
    269,804.10x = 372,330.20 × 148,945.55
  4. Step 4: Simplify right side
    269,804.10x = 55,456,926,420.61
  5. Step 5: Solve for x
    x = 55,456,926,420.61/269,804.10
  6. Step 6: Final answer
    x = 205,545.16

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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.