Home / 218,831.64-328,025.85-147,579.18

Finding the Fourth Proportional to 218,831.64, 328,025.85 and 147,579.18

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Solution

The fourth proportional to 218,831.64, 328,025.85 and 147,579.18 is: 221,219.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,831.64 : 328,025.85 = 147,579.18 : x
  2. Step 2: Convert to fraction form
    218,831.64/328,025.85 = 147,579.18/x
  3. Step 3: Cross multiply
    218,831.64x = 328,025.85 × 147,579.18
  4. Step 4: Simplify right side
    218,831.64x = 48,409,785,961.80
  5. Step 5: Solve for x
    x = 48,409,785,961.80/218,831.64
  6. Step 6: Final answer
    x = 221,219.32

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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.