Home / 321,557.05-443,719.65-178,316.65

Finding the Fourth Proportional to 321,557.05, 443,719.65 and 178,316.65

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Solution

The fourth proportional to 321,557.05, 443,719.65 and 178,316.65 is: 246,060.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,557.05 : 443,719.65 = 178,316.65 : x
  2. Step 2: Convert to fraction form
    321,557.05/443,719.65 = 178,316.65/x
  3. Step 3: Cross multiply
    321,557.05x = 443,719.65 × 178,316.65
  4. Step 4: Simplify right side
    321,557.05x = 79,122,601,527.17
  5. Step 5: Solve for x
    x = 79,122,601,527.17/321,557.05
  6. Step 6: Final answer
    x = 246,060.85

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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.