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Finding the Fourth Proportional to 185,418, 255,876.84 and 100,535.04

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Solution

The fourth proportional to 185,418, 255,876.84 and 100,535.04 is: 138,738.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,418 : 255,876.84 = 100,535.04 : x
  2. Step 2: Convert to fraction form
    185,418/255,876.84 = 100,535.04/x
  3. Step 3: Cross multiply
    185,418x = 255,876.84 × 100,535.04
  4. Step 4: Simplify right side
    185,418x = 25,724,588,344.47
  5. Step 5: Solve for x
    x = 25,724,588,344.47/185,418
  6. Step 6: Final answer
    x = 138,738.36

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1.5x scale

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.