Home / 217,279.23-326,045.97-90,908.88

Finding the Fourth Proportional to 217,279.23, 326,045.97 and 90,908.88

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Solution

The fourth proportional to 217,279.23, 326,045.97 and 90,908.88 is: 136,416.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,279.23 : 326,045.97 = 90,908.88 : x
  2. Step 2: Convert to fraction form
    217,279.23/326,045.97 = 90,908.88/x
  3. Step 3: Cross multiply
    217,279.23x = 326,045.97 × 90,908.88
  4. Step 4: Simplify right side
    217,279.23x = 29,640,473,961.21
  5. Step 5: Solve for x
    x = 29,640,473,961.21/217,279.23
  6. Step 6: Final answer
    x = 136,416.51

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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.