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Finding the Fourth Proportional to 344,223.78, 516,157.50 and 154,520.80

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Solution

The fourth proportional to 344,223.78, 516,157.50 and 154,520.80 is: 231,701.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,223.78 : 516,157.50 = 154,520.80 : x
  2. Step 2: Convert to fraction form
    344,223.78/516,157.50 = 154,520.80/x
  3. Step 3: Cross multiply
    344,223.78x = 516,157.50 × 154,520.80
  4. Step 4: Simplify right side
    344,223.78x = 79,757,069,826
  5. Step 5: Solve for x
    x = 79,757,069,826/344,223.78
  6. Step 6: Final answer
    x = 231,701.22

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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.