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Finding the Fourth Proportional to 340,288.53, 469,757.60 and 197,020.89

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Solution

The fourth proportional to 340,288.53, 469,757.60 and 197,020.89 is: 271,981.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,288.53 : 469,757.60 = 197,020.89 : x
  2. Step 2: Convert to fraction form
    340,288.53/469,757.60 = 197,020.89/x
  3. Step 3: Cross multiply
    340,288.53x = 469,757.60 × 197,020.89
  4. Step 4: Simplify right side
    340,288.53x = 92,552,059,451.16
  5. Step 5: Solve for x
    x = 92,552,059,451.16/340,288.53
  6. Step 6: Final answer
    x = 271,981.13

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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.