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Finding the Fourth Proportional to 261,954.56, 361,480.08 and 154,500.08

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Solution

The fourth proportional to 261,954.56, 361,480.08 and 154,500.08 is: 213,199.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,954.56 : 361,480.08 = 154,500.08 : x
  2. Step 2: Convert to fraction form
    261,954.56/361,480.08 = 154,500.08/x
  3. Step 3: Cross multiply
    261,954.56x = 361,480.08 × 154,500.08
  4. Step 4: Simplify right side
    261,954.56x = 55,848,701,278.41
  5. Step 5: Solve for x
    x = 55,848,701,278.41/261,954.56
  6. Step 6: Final answer
    x = 213,199.96

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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.