Home / 221,801.20-306,085.32-126,307.94

Finding the Fourth Proportional to 221,801.20, 306,085.32 and 126,307.94

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Solution

The fourth proportional to 221,801.20, 306,085.32 and 126,307.94 is: 174,304.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,801.20 : 306,085.32 = 126,307.94 : x
  2. Step 2: Convert to fraction form
    221,801.20/306,085.32 = 126,307.94/x
  3. Step 3: Cross multiply
    221,801.20x = 306,085.32 × 126,307.94
  4. Step 4: Simplify right side
    221,801.20x = 38,661,006,233.44
  5. Step 5: Solve for x
    x = 38,661,006,233.44/221,801.20
  6. Step 6: Final answer
    x = 174,304.77

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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.