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Finding the Fourth Proportional to 396,461.50, 546,868.02 and 235,202.38

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Solution

The fourth proportional to 396,461.50, 546,868.02 and 235,202.38 is: 324,431.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,461.50 : 546,868.02 = 235,202.38 : x
  2. Step 2: Convert to fraction form
    396,461.50/546,868.02 = 235,202.38/x
  3. Step 3: Cross multiply
    396,461.50x = 546,868.02 × 235,202.38
  4. Step 4: Simplify right side
    396,461.50x = 128,624,659,849.89
  5. Step 5: Solve for x
    x = 128,624,659,849.89/396,461.50
  6. Step 6: Final answer
    x = 324,431.65

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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.