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Finding the Fourth Proportional to 419,181.39, 578,854.62 and 266,268.85

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Solution

The fourth proportional to 419,181.39, 578,854.62 and 266,268.85 is: 367,695.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,181.39 : 578,854.62 = 266,268.85 : x
  2. Step 2: Convert to fraction form
    419,181.39/578,854.62 = 266,268.85/x
  3. Step 3: Cross multiply
    419,181.39x = 578,854.62 × 266,268.85
  4. Step 4: Simplify right side
    419,181.39x = 154,130,952,537.45
  5. Step 5: Solve for x
    x = 154,130,952,537.45/419,181.39
  6. Step 6: Final answer
    x = 367,695.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.