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Finding the Fourth Proportional to 318,376.54, 477,274.85 and 204,555.29

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Solution

The fourth proportional to 318,376.54, 477,274.85 and 204,555.29 is: 306,646.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,376.54 : 477,274.85 = 204,555.29 : x
  2. Step 2: Convert to fraction form
    318,376.54/477,274.85 = 204,555.29/x
  3. Step 3: Cross multiply
    318,376.54x = 477,274.85 × 204,555.29
  4. Step 4: Simplify right side
    318,376.54x = 97,629,095,394.06
  5. Step 5: Solve for x
    x = 97,629,095,394.06/318,376.54
  6. Step 6: Final answer
    x = 306,646.64

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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.