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Finding the Fourth Proportional to 185,364.60, 278,046.90 and 125,878.20

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Solution

The fourth proportional to 185,364.60, 278,046.90 and 125,878.20 is: 188,817.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,364.60 : 278,046.90 = 125,878.20 : x
  2. Step 2: Convert to fraction form
    185,364.60/278,046.90 = 125,878.20/x
  3. Step 3: Cross multiply
    185,364.60x = 278,046.90 × 125,878.20
  4. Step 4: Simplify right side
    185,364.60x = 35,000,043,287.58
  5. Step 5: Solve for x
    x = 35,000,043,287.58/185,364.60
  6. Step 6: Final answer
    x = 188,817.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.