Home / 340,145.89-510,198.18-126,872.69

Finding the Fourth Proportional to 340,145.89, 510,198.18 and 126,872.69

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Solution

The fourth proportional to 340,145.89, 510,198.18 and 126,872.69 is: 190,301.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,145.89 : 510,198.18 = 126,872.69 : x
  2. Step 2: Convert to fraction form
    340,145.89/510,198.18 = 126,872.69/x
  3. Step 3: Cross multiply
    340,145.89x = 510,198.18 × 126,872.69
  4. Step 4: Simplify right side
    340,145.89x = 64,730,215,529.70
  5. Step 5: Solve for x
    x = 64,730,215,529.70/340,145.89
  6. Step 6: Final answer
    x = 190,301.33

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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.