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Finding the Fourth Proportional to 266,487.20, 399,212.40 and 160,992.80

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Solution

The fourth proportional to 266,487.20, 399,212.40 and 160,992.80 is: 241,176.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,487.20 : 399,212.40 = 160,992.80 : x
  2. Step 2: Convert to fraction form
    266,487.20/399,212.40 = 160,992.80/x
  3. Step 3: Cross multiply
    266,487.20x = 399,212.40 × 160,992.80
  4. Step 4: Simplify right side
    266,487.20x = 64,270,322,070.72
  5. Step 5: Solve for x
    x = 64,270,322,070.72/266,487.20
  6. Step 6: Final answer
    x = 241,176.02

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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.