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Finding the Fourth Proportional to 398,403.20, 597,710.40 and 173,667.20

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Solution

The fourth proportional to 398,403.20, 597,710.40 and 173,667.20 is: 260,546.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,403.20 : 597,710.40 = 173,667.20 : x
  2. Step 2: Convert to fraction form
    398,403.20/597,710.40 = 173,667.20/x
  3. Step 3: Cross multiply
    398,403.20x = 597,710.40 × 173,667.20
  4. Step 4: Simplify right side
    398,403.20x = 103,802,691,578.88
  5. Step 5: Solve for x
    x = 103,802,691,578.88/398,403.20
  6. Step 6: Final answer
    x = 260,546.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.