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Finding the Fourth Proportional to 185,120.17, 277,493.31 and 72,879.17

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Solution

The fourth proportional to 185,120.17, 277,493.31 and 72,879.17 is: 109,245.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,120.17 : 277,493.31 = 72,879.17 : x
  2. Step 2: Convert to fraction form
    185,120.17/277,493.31 = 72,879.17/x
  3. Step 3: Cross multiply
    185,120.17x = 277,493.31 × 72,879.17
  4. Step 4: Simplify right side
    185,120.17x = 20,223,480,725.89
  5. Step 5: Solve for x
    x = 20,223,480,725.89/185,120.17
  6. Step 6: Final answer
    x = 109,245.15

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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.