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Finding the Fourth Proportional to 396,880.30, 547,679.10 and 235,731.07

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Solution

The fourth proportional to 396,880.30, 547,679.10 and 235,731.07 is: 325,299.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,880.30 : 547,679.10 = 235,731.07 : x
  2. Step 2: Convert to fraction form
    396,880.30/547,679.10 = 235,731.07/x
  3. Step 3: Cross multiply
    396,880.30x = 547,679.10 × 235,731.07
  4. Step 4: Simplify right side
    396,880.30x = 129,104,980,259.64
  5. Step 5: Solve for x
    x = 129,104,980,259.64/396,880.30
  6. Step 6: Final answer
    x = 325,299.54

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1.5x scale

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.