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Finding the Fourth Proportional to 231,332.80, 346,480.80 and 189,860.80

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Solution

The fourth proportional to 231,332.80, 346,480.80 and 189,860.80 is: 284,365.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,332.80 : 346,480.80 = 189,860.80 : x
  2. Step 2: Convert to fraction form
    231,332.80/346,480.80 = 189,860.80/x
  3. Step 3: Cross multiply
    231,332.80x = 346,480.80 × 189,860.80
  4. Step 4: Simplify right side
    231,332.80x = 65,783,121,872.64
  5. Step 5: Solve for x
    x = 65,783,121,872.64/231,332.80
  6. Step 6: Final answer
    x = 284,365.74

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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.