Home / 303,496.20-455,244.30-103,786.65

Finding the Fourth Proportional to 303,496.20, 455,244.30 and 103,786.65

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Solution

The fourth proportional to 303,496.20, 455,244.30 and 103,786.65 is: 155,679.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,496.20 : 455,244.30 = 103,786.65 : x
  2. Step 2: Convert to fraction form
    303,496.20/455,244.30 = 103,786.65/x
  3. Step 3: Cross multiply
    303,496.20x = 455,244.30 × 103,786.65
  4. Step 4: Simplify right side
    303,496.20x = 47,248,280,828.60
  5. Step 5: Solve for x
    x = 47,248,280,828.60/303,496.20
  6. Step 6: Final answer
    x = 155,679.98

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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.