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Finding the Fourth Proportional to 266,422.61, 367,668.49 and 145,571.40

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Solution

The fourth proportional to 266,422.61, 367,668.49 and 145,571.40 is: 200,891.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,422.61 : 367,668.49 = 145,571.40 : x
  2. Step 2: Convert to fraction form
    266,422.61/367,668.49 = 145,571.40/x
  3. Step 3: Cross multiply
    266,422.61x = 367,668.49 × 145,571.40
  4. Step 4: Simplify right side
    266,422.61x = 53,522,016,825.19
  5. Step 5: Solve for x
    x = 53,522,016,825.19/266,422.61
  6. Step 6: Final answer
    x = 200,891.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.