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Finding the Fourth Proportional to 285,064.97, 427,147.32 and 231,496.26

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Solution

The fourth proportional to 285,064.97, 427,147.32 and 231,496.26 is: 346,878.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,064.97 : 427,147.32 = 231,496.26 : x
  2. Step 2: Convert to fraction form
    285,064.97/427,147.32 = 231,496.26/x
  3. Step 3: Cross multiply
    285,064.97x = 427,147.32 × 231,496.26
  4. Step 4: Simplify right side
    285,064.97x = 98,883,007,049.02
  5. Step 5: Solve for x
    x = 98,883,007,049.02/285,064.97
  6. Step 6: Final answer
    x = 346,878.85

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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.