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Finding the Fourth Proportional to 397,227.80, 595,064.10 and 238,986.20

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Solution

The fourth proportional to 397,227.80, 595,064.10 and 238,986.20 is: 358,011.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,227.80 : 595,064.10 = 238,986.20 : x
  2. Step 2: Convert to fraction form
    397,227.80/595,064.10 = 238,986.20/x
  3. Step 3: Cross multiply
    397,227.80x = 595,064.10 × 238,986.20
  4. Step 4: Simplify right side
    397,227.80x = 142,212,108,015.42
  5. Step 5: Solve for x
    x = 142,212,108,015.42/397,227.80
  6. Step 6: Final answer
    x = 358,011.47

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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.