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Finding the Fourth Proportional to 266,284.80, 399,494.88 and 79,297.92

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Solution

The fourth proportional to 266,284.80, 399,494.88 and 79,297.92 is: 118,967.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,284.80 : 399,494.88 = 79,297.92 : x
  2. Step 2: Convert to fraction form
    266,284.80/399,494.88 = 79,297.92/x
  3. Step 3: Cross multiply
    266,284.80x = 399,494.88 × 79,297.92
  4. Step 4: Simplify right side
    266,284.80x = 31,679,113,034.65
  5. Step 5: Solve for x
    x = 31,679,113,034.65/266,284.80
  6. Step 6: Final answer
    x = 118,967.03

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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.