Home / 276,821.64-382,012.13-156,001.70

Finding the Fourth Proportional to 276,821.64, 382,012.13 and 156,001.70

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Solution

The fourth proportional to 276,821.64, 382,012.13 and 156,001.70 is: 215,281.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,821.64 : 382,012.13 = 156,001.70 : x
  2. Step 2: Convert to fraction form
    276,821.64/382,012.13 = 156,001.70/x
  3. Step 3: Cross multiply
    276,821.64x = 382,012.13 × 156,001.70
  4. Step 4: Simplify right side
    276,821.64x = 59,594,543,045.66
  5. Step 5: Solve for x
    x = 59,594,543,045.66/276,821.64
  6. Step 6: Final answer
    x = 215,281.37

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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.