Home / 321,102.18-443,121.03-177,871.50

Finding the Fourth Proportional to 321,102.18, 443,121.03 and 177,871.50

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Solution

The fourth proportional to 321,102.18, 443,121.03 and 177,871.50 is: 245,462.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,102.18 : 443,121.03 = 177,871.50 : x
  2. Step 2: Convert to fraction form
    321,102.18/443,121.03 = 177,871.50/x
  3. Step 3: Cross multiply
    321,102.18x = 443,121.03 × 177,871.50
  4. Step 4: Simplify right side
    321,102.18x = 78,818,602,287.65
  5. Step 5: Solve for x
    x = 78,818,602,287.65/321,102.18
  6. Step 6: Final answer
    x = 245,462.68

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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.