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Finding the Fourth Proportional to 328,860, 493,306.20 and 107,244

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Solution

The fourth proportional to 328,860, 493,306.20 and 107,244 is: 160,871.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,860 : 493,306.20 = 107,244 : x
  2. Step 2: Convert to fraction form
    328,860/493,306.20 = 107,244/x
  3. Step 3: Cross multiply
    328,860x = 493,306.20 × 107,244
  4. Step 4: Simplify right side
    328,860x = 52,904,130,112.80
  5. Step 5: Solve for x
    x = 52,904,130,112.80/328,860
  6. Step 6: Final answer
    x = 160,871.28

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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.