Home / 391,112.52-586,837.34-211,162.20

Finding the Fourth Proportional to 391,112.52, 586,837.34 and 211,162.20

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Solution

The fourth proportional to 391,112.52, 586,837.34 and 211,162.20 is: 316,834.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,112.52 : 586,837.34 = 211,162.20 : x
  2. Step 2: Convert to fraction form
    391,112.52/586,837.34 = 211,162.20/x
  3. Step 3: Cross multiply
    391,112.52x = 586,837.34 × 211,162.20
  4. Step 4: Simplify right side
    391,112.52x = 123,917,863,756.55
  5. Step 5: Solve for x
    x = 123,917,863,756.55/391,112.52
  6. Step 6: Final answer
    x = 316,834.31

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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.