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Finding the Fourth Proportional to 227,554.60, 341,331.90 and 138,981.10

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Solution

The fourth proportional to 227,554.60, 341,331.90 and 138,981.10 is: 208,471.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,554.60 : 341,331.90 = 138,981.10 : x
  2. Step 2: Convert to fraction form
    227,554.60/341,331.90 = 138,981.10/x
  3. Step 3: Cross multiply
    227,554.60x = 341,331.90 × 138,981.10
  4. Step 4: Simplify right side
    227,554.60x = 47,438,682,927.09
  5. Step 5: Solve for x
    x = 47,438,682,927.09/227,554.60
  6. Step 6: Final answer
    x = 208,471.65

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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.