Home / 210,839.88-290,965.92-115,346.58

Finding the Fourth Proportional to 210,839.88, 290,965.92 and 115,346.58

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Solution

The fourth proportional to 210,839.88, 290,965.92 and 115,346.58 is: 159,182.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,839.88 : 290,965.92 = 115,346.58 : x
  2. Step 2: Convert to fraction form
    210,839.88/290,965.92 = 115,346.58/x
  3. Step 3: Cross multiply
    210,839.88x = 290,965.92 × 115,346.58
  4. Step 4: Simplify right side
    210,839.88x = 33,561,923,768.55
  5. Step 5: Solve for x
    x = 33,561,923,768.55/210,839.88
  6. Step 6: Final answer
    x = 159,182.05

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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.