Home / 221,043.40-331,565.10-54,831.40

Finding the Fourth Proportional to 221,043.40, 331,565.10 and 54,831.40

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Solution

The fourth proportional to 221,043.40, 331,565.10 and 54,831.40 is: 82,247.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,043.40 : 331,565.10 = 54,831.40 : x
  2. Step 2: Convert to fraction form
    221,043.40/331,565.10 = 54,831.40/x
  3. Step 3: Cross multiply
    221,043.40x = 331,565.10 × 54,831.40
  4. Step 4: Simplify right side
    221,043.40x = 18,180,178,624.14
  5. Step 5: Solve for x
    x = 18,180,178,624.14/221,043.40
  6. Step 6: Final answer
    x = 82,247.10

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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.