Home / 279,541.56-419,377.14-79,864.68

Finding the Fourth Proportional to 279,541.56, 419,377.14 and 79,864.68

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Solution

The fourth proportional to 279,541.56, 419,377.14 and 79,864.68 is: 119,815.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,541.56 : 419,377.14 = 79,864.68 : x
  2. Step 2: Convert to fraction form
    279,541.56/419,377.14 = 79,864.68/x
  3. Step 3: Cross multiply
    279,541.56x = 419,377.14 × 79,864.68
  4. Step 4: Simplify right side
    279,541.56x = 33,493,421,085.42
  5. Step 5: Solve for x
    x = 33,493,421,085.42/279,541.56
  6. Step 6: Final answer
    x = 119,815.53

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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.