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Finding the Fourth Proportional to 185,271.52, 255,673.92 and 100,388.92

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Solution

The fourth proportional to 185,271.52, 255,673.92 and 100,388.92 is: 138,536.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,271.52 : 255,673.92 = 100,388.92 : x
  2. Step 2: Convert to fraction form
    185,271.52/255,673.92 = 100,388.92/x
  3. Step 3: Cross multiply
    185,271.52x = 255,673.92 × 100,388.92
  4. Step 4: Simplify right side
    185,271.52x = 25,666,828,700.97
  5. Step 5: Solve for x
    x = 25,666,828,700.97/185,271.52
  6. Step 6: Final answer
    x = 138,536.29

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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.