Home / 273,043.40-409,475.96-90,625.20

Finding the Fourth Proportional to 273,043.40, 409,475.96 and 90,625.20

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Solution

The fourth proportional to 273,043.40, 409,475.96 and 90,625.20 is: 135,908.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,043.40 : 409,475.96 = 90,625.20 : x
  2. Step 2: Convert to fraction form
    273,043.40/409,475.96 = 90,625.20/x
  3. Step 3: Cross multiply
    273,043.40x = 409,475.96 × 90,625.20
  4. Step 4: Simplify right side
    273,043.40x = 37,108,840,770.19
  5. Step 5: Solve for x
    x = 37,108,840,770.19/273,043.40
  6. Step 6: Final answer
    x = 135,908.21

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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.