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Finding the Fourth Proportional to 338,505.15, 508,390.17 and 297,993.03

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Solution

The fourth proportional to 338,505.15, 508,390.17 and 297,993.03 is: 447,546.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,505.15 : 508,390.17 = 297,993.03 : x
  2. Step 2: Convert to fraction form
    338,505.15/508,390.17 = 297,993.03/x
  3. Step 3: Cross multiply
    338,505.15x = 508,390.17 × 297,993.03
  4. Step 4: Simplify right side
    338,505.15x = 151,496,727,180.52
  5. Step 5: Solve for x
    x = 151,496,727,180.52/338,505.15
  6. Step 6: Final answer
    x = 447,546.30

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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.