Home / 154,288.80-231,451.20-49,118.40

Finding the Fourth Proportional to 154,288.80, 231,451.20 and 49,118.40

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Solution

The fourth proportional to 154,288.80, 231,451.20 and 49,118.40 is: 73,683.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,288.80 : 231,451.20 = 49,118.40 : x
  2. Step 2: Convert to fraction form
    154,288.80/231,451.20 = 49,118.40/x
  3. Step 3: Cross multiply
    154,288.80x = 231,451.20 × 49,118.40
  4. Step 4: Simplify right side
    154,288.80x = 11,368,512,622.08
  5. Step 5: Solve for x
    x = 11,368,512,622.08/154,288.80
  6. Step 6: Final answer
    x = 73,683.33

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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.