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Finding the Fourth Proportional to 266,050.30, 399,074.40 and 79,061.80

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Solution

The fourth proportional to 266,050.30, 399,074.40 and 79,061.80 is: 118,592.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,050.30 : 399,074.40 = 79,061.80 : x
  2. Step 2: Convert to fraction form
    266,050.30/399,074.40 = 79,061.80/x
  3. Step 3: Cross multiply
    266,050.30x = 399,074.40 × 79,061.80
  4. Step 4: Simplify right side
    266,050.30x = 31,551,540,397.92
  5. Step 5: Solve for x
    x = 31,551,540,397.92/266,050.30
  6. Step 6: Final answer
    x = 118,592.39

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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.