Home / 217,706.28-326,680.38-117,865

Finding the Fourth Proportional to 217,706.28, 326,680.38 and 117,865

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Solution

The fourth proportional to 217,706.28, 326,680.38 and 117,865 is: 176,862.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,706.28 : 326,680.38 = 117,865 : x
  2. Step 2: Convert to fraction form
    217,706.28/326,680.38 = 117,865/x
  3. Step 3: Cross multiply
    217,706.28x = 326,680.38 × 117,865
  4. Step 4: Simplify right side
    217,706.28x = 38,504,182,988.70
  5. Step 5: Solve for x
    x = 38,504,182,988.70/217,706.28
  6. Step 6: Final answer
    x = 176,862.99

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.