Home / 205,209.36-283,306.64-156,428.28

Finding the Fourth Proportional to 205,209.36, 283,306.64 and 156,428.28

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Solution

The fourth proportional to 205,209.36, 283,306.64 and 156,428.28 is: 215,960.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,209.36 : 283,306.64 = 156,428.28 : x
  2. Step 2: Convert to fraction form
    205,209.36/283,306.64 = 156,428.28/x
  3. Step 3: Cross multiply
    205,209.36x = 283,306.64 × 156,428.28
  4. Step 4: Simplify right side
    205,209.36x = 44,317,170,407.78
  5. Step 5: Solve for x
    x = 44,317,170,407.78/205,209.36
  6. Step 6: Final answer
    x = 215,960.77

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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.