Home / 285,913.80-428,292.36-136,299.24

Finding the Fourth Proportional to 285,913.80, 428,292.36 and 136,299.24

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Solution

The fourth proportional to 285,913.80, 428,292.36 and 136,299.24 is: 204,173.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,913.80 : 428,292.36 = 136,299.24 : x
  2. Step 2: Convert to fraction form
    285,913.80/428,292.36 = 136,299.24/x
  3. Step 3: Cross multiply
    285,913.80x = 428,292.36 × 136,299.24
  4. Step 4: Simplify right side
    285,913.80x = 58,375,923,165.81
  5. Step 5: Solve for x
    x = 58,375,923,165.81/285,913.80
  6. Step 6: Final answer
    x = 204,173.16

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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.