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Finding the Fourth Proportional to 320,363.28, 480,538.44 and 95,724.36

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Solution

The fourth proportional to 320,363.28, 480,538.44 and 95,724.36 is: 143,584.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,363.28 : 480,538.44 = 95,724.36 : x
  2. Step 2: Convert to fraction form
    320,363.28/480,538.44 = 95,724.36/x
  3. Step 3: Cross multiply
    320,363.28x = 480,538.44 × 95,724.36
  4. Step 4: Simplify right side
    320,363.28x = 45,999,234,624.40
  5. Step 5: Solve for x
    x = 45,999,234,624.40/320,363.28
  6. Step 6: Final answer
    x = 143,584.60

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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.