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Finding the Fourth Proportional to 266,480.88, 399,888 and 166,835.60

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Solution

The fourth proportional to 266,480.88, 399,888 and 166,835.60 is: 250,357.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,480.88 : 399,888 = 166,835.60 : x
  2. Step 2: Convert to fraction form
    266,480.88/399,888 = 166,835.60/x
  3. Step 3: Cross multiply
    266,480.88x = 399,888 × 166,835.60
  4. Step 4: Simplify right side
    266,480.88x = 66,715,554,412.80
  5. Step 5: Solve for x
    x = 66,715,554,412.80/266,480.88
  6. Step 6: Final answer
    x = 250,357.75

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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.