Home / 214,521.03-321,781.64-74,279.66

Finding the Fourth Proportional to 214,521.03, 321,781.64 and 74,279.66

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Solution

The fourth proportional to 214,521.03, 321,781.64 and 74,279.66 is: 111,419.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,521.03 : 321,781.64 = 74,279.66 : x
  2. Step 2: Convert to fraction form
    214,521.03/321,781.64 = 74,279.66/x
  3. Step 3: Cross multiply
    214,521.03x = 321,781.64 × 74,279.66
  4. Step 4: Simplify right side
    214,521.03x = 23,901,828,833.14
  5. Step 5: Solve for x
    x = 23,901,828,833.14/214,521.03
  6. Step 6: Final answer
    x = 111,419.51

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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.