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Finding the Fourth Proportional to 285,477.62, 428,223.39 and 95,940.78

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Solution

The fourth proportional to 285,477.62, 428,223.39 and 95,940.78 is: 143,913.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,477.62 : 428,223.39 = 95,940.78 : x
  2. Step 2: Convert to fraction form
    285,477.62/428,223.39 = 95,940.78/x
  3. Step 3: Cross multiply
    285,477.62x = 428,223.39 × 95,940.78
  4. Step 4: Simplify right side
    285,477.62x = 41,084,086,050.84
  5. Step 5: Solve for x
    x = 41,084,086,050.84/285,477.62
  6. Step 6: Final answer
    x = 143,913.51

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1.5x scale

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.