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Finding the Fourth Proportional to 217,895.88, 326,759.58 and 84,758.16

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Solution

The fourth proportional to 217,895.88, 326,759.58 and 84,758.16 is: 127,104.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,895.88 : 326,759.58 = 84,758.16 : x
  2. Step 2: Convert to fraction form
    217,895.88/326,759.58 = 84,758.16/x
  3. Step 3: Cross multiply
    217,895.88x = 326,759.58 × 84,758.16
  4. Step 4: Simplify right side
    217,895.88x = 27,695,540,763.17
  5. Step 5: Solve for x
    x = 27,695,540,763.17/217,895.88
  6. Step 6: Final answer
    x = 127,104.47

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1.5x scale

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.