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Finding the Fourth Proportional to 266,424.53, 399,292.30 and 199,338.30

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Solution

The fourth proportional to 266,424.53, 399,292.30 and 199,338.30 is: 298,749.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,424.53 : 399,292.30 = 199,338.30 : x
  2. Step 2: Convert to fraction form
    266,424.53/399,292.30 = 199,338.30/x
  3. Step 3: Cross multiply
    266,424.53x = 399,292.30 × 199,338.30
  4. Step 4: Simplify right side
    266,424.53x = 79,594,248,285.09
  5. Step 5: Solve for x
    x = 79,594,248,285.09/266,424.53
  6. Step 6: Final answer
    x = 298,749.70

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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.