Home / 303,554.15-455,251.83-90,264.65

Finding the Fourth Proportional to 303,554.15, 455,251.83 and 90,264.65

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Solution

The fourth proportional to 303,554.15, 455,251.83 and 90,264.65 is: 135,373.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,554.15 : 455,251.83 = 90,264.65 : x
  2. Step 2: Convert to fraction form
    303,554.15/455,251.83 = 90,264.65/x
  3. Step 3: Cross multiply
    303,554.15x = 455,251.83 × 90,264.65
  4. Step 4: Simplify right side
    303,554.15x = 41,093,144,820.55
  5. Step 5: Solve for x
    x = 41,093,144,820.55/303,554.15
  6. Step 6: Final answer
    x = 135,373.36

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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.