Home / 277,243.28-382,579.81-156,377.36

Finding the Fourth Proportional to 277,243.28, 382,579.81 and 156,377.36

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Solution

The fourth proportional to 277,243.28, 382,579.81 and 156,377.36 is: 215,791.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,243.28 : 382,579.81 = 156,377.36 : x
  2. Step 2: Convert to fraction form
    277,243.28/382,579.81 = 156,377.36/x
  3. Step 3: Cross multiply
    277,243.28x = 382,579.81 × 156,377.36
  4. Step 4: Simplify right side
    277,243.28x = 59,826,820,677.10
  5. Step 5: Solve for x
    x = 59,826,820,677.10/277,243.28
  6. Step 6: Final answer
    x = 215,791.78

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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.