Home / 242,579.40-363,998.70-109,480.20

Finding the Fourth Proportional to 242,579.40, 363,998.70 and 109,480.20

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Solution

The fourth proportional to 242,579.40, 363,998.70 and 109,480.20 is: 164,278.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,579.40 : 363,998.70 = 109,480.20 : x
  2. Step 2: Convert to fraction form
    242,579.40/363,998.70 = 109,480.20/x
  3. Step 3: Cross multiply
    242,579.40x = 363,998.70 × 109,480.20
  4. Step 4: Simplify right side
    242,579.40x = 39,850,650,475.74
  5. Step 5: Solve for x
    x = 39,850,650,475.74/242,579.40
  6. Step 6: Final answer
    x = 164,278.79

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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.