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Finding the Fourth Proportional to 359,428.89, 496,010.46 and 198,293.97

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Solution

The fourth proportional to 359,428.89, 496,010.46 and 198,293.97 is: 273,644.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,428.89 : 496,010.46 = 198,293.97 : x
  2. Step 2: Convert to fraction form
    359,428.89/496,010.46 = 198,293.97/x
  3. Step 3: Cross multiply
    359,428.89x = 496,010.46 × 198,293.97
  4. Step 4: Simplify right side
    359,428.89x = 98,355,883,274.93
  5. Step 5: Solve for x
    x = 98,355,883,274.93/359,428.89
  6. Step 6: Final answer
    x = 273,644.90

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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.