Home / 321,319.73-443,421.26-178,089.02

Finding the Fourth Proportional to 321,319.73, 443,421.26 and 178,089.02

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Solution

The fourth proportional to 321,319.73, 443,421.26 and 178,089.02 is: 245,762.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,319.73 : 443,421.26 = 178,089.02 : x
  2. Step 2: Convert to fraction form
    321,319.73/443,421.26 = 178,089.02/x
  3. Step 3: Cross multiply
    321,319.73x = 443,421.26 × 178,089.02
  4. Step 4: Simplify right side
    321,319.73x = 78,968,455,868.68
  5. Step 5: Solve for x
    x = 78,968,455,868.68/321,319.73
  6. Step 6: Final answer
    x = 245,762.86

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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.