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Finding the Fourth Proportional to 396,360.72, 546,901.20 and 235,358.64

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Solution

The fourth proportional to 396,360.72, 546,901.20 and 235,358.64 is: 324,749.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,360.72 : 546,901.20 = 235,358.64 : x
  2. Step 2: Convert to fraction form
    396,360.72/546,901.20 = 235,358.64/x
  3. Step 3: Cross multiply
    396,360.72x = 546,901.20 × 235,358.64
  4. Step 4: Simplify right side
    396,360.72x = 128,717,922,646.37
  5. Step 5: Solve for x
    x = 128,717,922,646.37/396,360.72
  6. Step 6: Final answer
    x = 324,749.44

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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.