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Finding the Fourth Proportional to 356,226.56, 534,375.52 and 131,646

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Solution

The fourth proportional to 356,226.56, 534,375.52 and 131,646 is: 197,482.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,226.56 : 534,375.52 = 131,646 : x
  2. Step 2: Convert to fraction form
    356,226.56/534,375.52 = 131,646/x
  3. Step 3: Cross multiply
    356,226.56x = 534,375.52 × 131,646
  4. Step 4: Simplify right side
    356,226.56x = 70,348,399,705.92
  5. Step 5: Solve for x
    x = 70,348,399,705.92/356,226.56
  6. Step 6: Final answer
    x = 197,482.19

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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.