Home / 243,769.60-336,494.28-218,229.76

Finding the Fourth Proportional to 243,769.60, 336,494.28 and 218,229.76

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Solution

The fourth proportional to 243,769.60, 336,494.28 and 218,229.76 is: 301,239.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,769.60 : 336,494.28 = 218,229.76 : x
  2. Step 2: Convert to fraction form
    243,769.60/336,494.28 = 218,229.76/x
  3. Step 3: Cross multiply
    243,769.60x = 336,494.28 × 218,229.76
  4. Step 4: Simplify right side
    243,769.60x = 73,433,065,965.77
  5. Step 5: Solve for x
    x = 73,433,065,965.77/243,769.60
  6. Step 6: Final answer
    x = 301,239.64

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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.