Home / 255,831.20-383,746.80-162,519.20

Finding the Fourth Proportional to 255,831.20, 383,746.80 and 162,519.20

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Solution

The fourth proportional to 255,831.20, 383,746.80 and 162,519.20 is: 243,778.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,831.20 : 383,746.80 = 162,519.20 : x
  2. Step 2: Convert to fraction form
    255,831.20/383,746.80 = 162,519.20/x
  3. Step 3: Cross multiply
    255,831.20x = 383,746.80 × 162,519.20
  4. Step 4: Simplify right side
    255,831.20x = 62,366,222,938.56
  5. Step 5: Solve for x
    x = 62,366,222,938.56/255,831.20
  6. Step 6: Final answer
    x = 243,778.80

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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.