Home / 396,160.57-546,913.40-309,936.27

Finding the Fourth Proportional to 396,160.57, 546,913.40 and 309,936.27

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Solution

The fourth proportional to 396,160.57, 546,913.40 and 309,936.27 is: 427,877.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,160.57 : 546,913.40 = 309,936.27 : x
  2. Step 2: Convert to fraction form
    396,160.57/546,913.40 = 309,936.27/x
  3. Step 3: Cross multiply
    396,160.57x = 546,913.40 × 309,936.27
  4. Step 4: Simplify right side
    396,160.57x = 169,508,299,209.02
  5. Step 5: Solve for x
    x = 169,508,299,209.02/396,160.57
  6. Step 6: Final answer
    x = 427,877.77

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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.