Home / 210,229.20-290,117.10-114,738

Finding the Fourth Proportional to 210,229.20, 290,117.10 and 114,738

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Solution

The fourth proportional to 210,229.20, 290,117.10 and 114,738 is: 158,338.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,229.20 : 290,117.10 = 114,738 : x
  2. Step 2: Convert to fraction form
    210,229.20/290,117.10 = 114,738/x
  3. Step 3: Cross multiply
    210,229.20x = 290,117.10 × 114,738
  4. Step 4: Simplify right side
    210,229.20x = 33,287,455,819.80
  5. Step 5: Solve for x
    x = 33,287,455,819.80/210,229.20
  6. Step 6: Final answer
    x = 158,338.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.