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Finding the Fourth Proportional to 423,745.22, 635,617.83 and 266,084.39

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Solution

The fourth proportional to 423,745.22, 635,617.83 and 266,084.39 is: 399,126.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,745.22 : 635,617.83 = 266,084.39 : x
  2. Step 2: Convert to fraction form
    423,745.22/635,617.83 = 266,084.39/x
  3. Step 3: Cross multiply
    423,745.22x = 635,617.83 × 266,084.39
  4. Step 4: Simplify right side
    423,745.22x = 169,127,985,155.54
  5. Step 5: Solve for x
    x = 169,127,985,155.54/423,745.22
  6. Step 6: Final answer
    x = 399,126.59

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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.