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Finding the Fourth Proportional to 356,168.67, 534,269.42 and 198,278.21

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Solution

The fourth proportional to 356,168.67, 534,269.42 and 198,278.21 is: 297,426.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,168.67 : 534,269.42 = 198,278.21 : x
  2. Step 2: Convert to fraction form
    356,168.67/534,269.42 = 198,278.21/x
  3. Step 3: Cross multiply
    356,168.67x = 534,269.42 × 198,278.21
  4. Step 4: Simplify right side
    356,168.67x = 105,933,980,592.60
  5. Step 5: Solve for x
    x = 105,933,980,592.60/356,168.67
  6. Step 6: Final answer
    x = 297,426.44

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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.