Home / 303,780.40-455,233.20-135,162.70

Finding the Fourth Proportional to 303,780.40, 455,233.20 and 135,162.70

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Solution

The fourth proportional to 303,780.40, 455,233.20 and 135,162.70 is: 202,549.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,780.40 : 455,233.20 = 135,162.70 : x
  2. Step 2: Convert to fraction form
    303,780.40/455,233.20 = 135,162.70/x
  3. Step 3: Cross multiply
    303,780.40x = 455,233.20 × 135,162.70
  4. Step 4: Simplify right side
    303,780.40x = 61,530,548,441.64
  5. Step 5: Solve for x
    x = 61,530,548,441.64/303,780.40
  6. Step 6: Final answer
    x = 202,549.44

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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.