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Finding the Fourth Proportional to 362,298.20, 543,447.30 and 311,559.80

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Solution

The fourth proportional to 362,298.20, 543,447.30 and 311,559.80 is: 467,339.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,298.20 : 543,447.30 = 311,559.80 : x
  2. Step 2: Convert to fraction form
    362,298.20/543,447.30 = 311,559.80/x
  3. Step 3: Cross multiply
    362,298.20x = 543,447.30 × 311,559.80
  4. Step 4: Simplify right side
    362,298.20x = 169,316,332,098.54
  5. Step 5: Solve for x
    x = 169,316,332,098.54/362,298.20
  6. Step 6: Final answer
    x = 467,339.70

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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.