Home / 366,481.20-549,527.40-129,831.60

Finding the Fourth Proportional to 366,481.20, 549,527.40 and 129,831.60

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Solution

The fourth proportional to 366,481.20, 549,527.40 and 129,831.60 is: 194,678.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,481.20 : 549,527.40 = 129,831.60 : x
  2. Step 2: Convert to fraction form
    366,481.20/549,527.40 = 129,831.60/x
  3. Step 3: Cross multiply
    366,481.20x = 549,527.40 × 129,831.60
  4. Step 4: Simplify right side
    366,481.20x = 71,346,021,585.84
  5. Step 5: Solve for x
    x = 71,346,021,585.84/366,481.20
  6. Step 6: Final answer
    x = 194,678.53

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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.