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Finding the Fourth Proportional to 185,424.80, 255,884.80 and 100,541.60

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Solution

The fourth proportional to 185,424.80, 255,884.80 and 100,541.60 is: 138,746.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,424.80 : 255,884.80 = 100,541.60 : x
  2. Step 2: Convert to fraction form
    185,424.80/255,884.80 = 100,541.60/x
  3. Step 3: Cross multiply
    185,424.80x = 255,884.80 × 100,541.60
  4. Step 4: Simplify right side
    185,424.80x = 25,727,067,207.68
  5. Step 5: Solve for x
    x = 25,727,067,207.68/185,424.80
  6. Step 6: Final answer
    x = 138,746.64

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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.