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Finding the Fourth Proportional to 351,527.60, 485,097.72 and 198,572.96

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Solution

The fourth proportional to 351,527.60, 485,097.72 and 198,572.96 is: 274,024.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,527.60 : 485,097.72 = 198,572.96 : x
  2. Step 2: Convert to fraction form
    351,527.60/485,097.72 = 198,572.96/x
  3. Step 3: Cross multiply
    351,527.60x = 485,097.72 × 198,572.96
  4. Step 4: Simplify right side
    351,527.60x = 96,327,290,149.65
  5. Step 5: Solve for x
    x = 96,327,290,149.65/351,527.60
  6. Step 6: Final answer
    x = 274,024.83

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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.