Home / 396,128.64-546,727.40-235,072.52

Finding the Fourth Proportional to 396,128.64, 546,727.40 and 235,072.52

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Solution

The fourth proportional to 396,128.64, 546,727.40 and 235,072.52 is: 324,441.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,128.64 : 546,727.40 = 235,072.52 : x
  2. Step 2: Convert to fraction form
    396,128.64/546,727.40 = 235,072.52/x
  3. Step 3: Cross multiply
    396,128.64x = 546,727.40 × 235,072.52
  4. Step 4: Simplify right side
    396,128.64x = 128,520,587,671.05
  5. Step 5: Solve for x
    x = 128,520,587,671.05/396,128.64
  6. Step 6: Final answer
    x = 324,441.54

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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.