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Finding the Fourth Proportional to 344,222.78, 516,156 and 154,519.80

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Solution

The fourth proportional to 344,222.78, 516,156 and 154,519.80 is: 231,699.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,222.78 : 516,156 = 154,519.80 : x
  2. Step 2: Convert to fraction form
    344,222.78/516,156 = 154,519.80/x
  3. Step 3: Cross multiply
    344,222.78x = 516,156 × 154,519.80
  4. Step 4: Simplify right side
    344,222.78x = 79,756,321,888.80
  5. Step 5: Solve for x
    x = 79,756,321,888.80/344,222.78
  6. Step 6: Final answer
    x = 231,699.72

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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.