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Finding the Fourth Proportional to 185,253.01, 255,647.55 and 100,369.87

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Solution

The fourth proportional to 185,253.01, 255,647.55 and 100,369.87 is: 138,509.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,253.01 : 255,647.55 = 100,369.87 : x
  2. Step 2: Convert to fraction form
    185,253.01/255,647.55 = 100,369.87/x
  3. Step 3: Cross multiply
    185,253.01x = 255,647.55 × 100,369.87
  4. Step 4: Simplify right side
    185,253.01x = 25,659,311,359.32
  5. Step 5: Solve for x
    x = 25,659,311,359.32/185,253.01
  6. Step 6: Final answer
    x = 138,509.55

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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.