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Finding the Fourth Proportional to 227,320.76, 313,702.66 and 126,718.76

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Solution

The fourth proportional to 227,320.76, 313,702.66 and 126,718.76 is: 174,871.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,320.76 : 313,702.66 = 126,718.76 : x
  2. Step 2: Convert to fraction form
    227,320.76/313,702.66 = 126,718.76/x
  3. Step 3: Cross multiply
    227,320.76x = 313,702.66 × 126,718.76
  4. Step 4: Simplify right side
    227,320.76x = 39,752,012,083.90
  5. Step 5: Solve for x
    x = 39,752,012,083.90/227,320.76
  6. Step 6: Final answer
    x = 174,871.90

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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.