Home / 439,831.20-659,746.80-229,879.20

Finding the Fourth Proportional to 439,831.20, 659,746.80 and 229,879.20

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Solution

The fourth proportional to 439,831.20, 659,746.80 and 229,879.20 is: 344,818.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,831.20 : 659,746.80 = 229,879.20 : x
  2. Step 2: Convert to fraction form
    439,831.20/659,746.80 = 229,879.20/x
  3. Step 3: Cross multiply
    439,831.20x = 659,746.80 × 229,879.20
  4. Step 4: Simplify right side
    439,831.20x = 151,662,066,586.56
  5. Step 5: Solve for x
    x = 151,662,066,586.56/439,831.20
  6. Step 6: Final answer
    x = 344,818.80

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1.5x scale

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.