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Finding the Fourth Proportional to 368,432.80, 552,649.20 and 200,471.20

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Solution

The fourth proportional to 368,432.80, 552,649.20 and 200,471.20 is: 300,706.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,432.80 : 552,649.20 = 200,471.20 : x
  2. Step 2: Convert to fraction form
    368,432.80/552,649.20 = 200,471.20/x
  3. Step 3: Cross multiply
    368,432.80x = 552,649.20 × 200,471.20
  4. Step 4: Simplify right side
    368,432.80x = 110,790,248,303.04
  5. Step 5: Solve for x
    x = 110,790,248,303.04/368,432.80
  6. Step 6: Final answer
    x = 300,706.80

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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.