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Finding the Fourth Proportional to 362,432.20, 543,648.30 and 329,189.80

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Solution

The fourth proportional to 362,432.20, 543,648.30 and 329,189.80 is: 493,784.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,432.20 : 543,648.30 = 329,189.80 : x
  2. Step 2: Convert to fraction form
    362,432.20/543,648.30 = 329,189.80/x
  3. Step 3: Cross multiply
    362,432.20x = 543,648.30 × 329,189.80
  4. Step 4: Simplify right side
    362,432.20x = 178,963,475,147.34
  5. Step 5: Solve for x
    x = 178,963,475,147.34/362,432.20
  6. Step 6: Final answer
    x = 493,784.70

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