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Finding the Fourth Proportional to 185,043.60, 277,128.17 and 90,338.64

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Solution

The fourth proportional to 185,043.60, 277,128.17 and 90,338.64 is: 135,294.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,043.60 : 277,128.17 = 90,338.64 : x
  2. Step 2: Convert to fraction form
    185,043.60/277,128.17 = 90,338.64/x
  3. Step 3: Cross multiply
    185,043.60x = 277,128.17 × 90,338.64
  4. Step 4: Simplify right side
    185,043.60x = 25,035,381,757.64
  5. Step 5: Solve for x
    x = 25,035,381,757.64/185,043.60
  6. Step 6: Final answer
    x = 135,294.50

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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.