Home / 321,317.15-443,316.29-185,332.86

Finding the Fourth Proportional to 321,317.15, 443,316.29 and 185,332.86

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Solution

The fourth proportional to 321,317.15, 443,316.29 and 185,332.86 is: 255,700.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,317.15 : 443,316.29 = 185,332.86 : x
  2. Step 2: Convert to fraction form
    321,317.15/443,316.29 = 185,332.86/x
  3. Step 3: Cross multiply
    321,317.15x = 443,316.29 × 185,332.86
  4. Step 4: Simplify right side
    321,317.15x = 82,161,074,983.63
  5. Step 5: Solve for x
    x = 82,161,074,983.63/321,317.15
  6. Step 6: Final answer
    x = 255,700.87

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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.