Home / 311,235.76-466,971.30-121,831.49

Finding the Fourth Proportional to 311,235.76, 466,971.30 and 121,831.49

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Solution

The fourth proportional to 311,235.76, 466,971.30 and 121,831.49 is: 182,793.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,235.76 : 466,971.30 = 121,831.49 : x
  2. Step 2: Convert to fraction form
    311,235.76/466,971.30 = 121,831.49/x
  3. Step 3: Cross multiply
    311,235.76x = 466,971.30 × 121,831.49
  4. Step 4: Simplify right side
    311,235.76x = 56,891,810,433.67
  5. Step 5: Solve for x
    x = 56,891,810,433.67/311,235.76
  6. Step 6: Final answer
    x = 182,793.30

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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.