Home / 397,705.12-596,471.28-131,402.56

Finding the Fourth Proportional to 397,705.12, 596,471.28 and 131,402.56

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Solution

The fourth proportional to 397,705.12, 596,471.28 and 131,402.56 is: 197,075.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,705.12 : 596,471.28 = 131,402.56 : x
  2. Step 2: Convert to fraction form
    397,705.12/596,471.28 = 131,402.56/x
  3. Step 3: Cross multiply
    397,705.12x = 596,471.28 × 131,402.56
  4. Step 4: Simplify right side
    397,705.12x = 78,377,853,158.48
  5. Step 5: Solve for x
    x = 78,377,853,158.48/397,705.12
  6. Step 6: Final answer
    x = 197,075.29

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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.