Home / 266,420.03-399,285.56-199,333.80

Finding the Fourth Proportional to 266,420.03, 399,285.56 and 199,333.80

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Solution

The fourth proportional to 266,420.03, 399,285.56 and 199,333.80 is: 298,742.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,420.03 : 399,285.56 = 199,333.80 : x
  2. Step 2: Convert to fraction form
    266,420.03/399,285.56 = 199,333.80/x
  3. Step 3: Cross multiply
    266,420.03x = 399,285.56 × 199,333.80
  4. Step 4: Simplify right side
    266,420.03x = 79,591,108,458.26
  5. Step 5: Solve for x
    x = 79,591,108,458.26/266,420.03
  6. Step 6: Final answer
    x = 298,742.97

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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.