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Finding the Fourth Proportional to 425,380.80, 587,051.28 and 234,393.96

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Solution

The fourth proportional to 425,380.80, 587,051.28 and 234,393.96 is: 323,477.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,380.80 : 587,051.28 = 234,393.96 : x
  2. Step 2: Convert to fraction form
    425,380.80/587,051.28 = 234,393.96/x
  3. Step 3: Cross multiply
    425,380.80x = 587,051.28 × 234,393.96
  4. Step 4: Simplify right side
    425,380.80x = 137,601,274,242.27
  5. Step 5: Solve for x
    x = 137,601,274,242.27/425,380.80
  6. Step 6: Final answer
    x = 323,477.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.