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Finding the Fourth Proportional to 266,418.72, 367,646.31 and 145,554.30

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Solution

The fourth proportional to 266,418.72, 367,646.31 and 145,554.30 is: 200,858.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,418.72 : 367,646.31 = 145,554.30 : x
  2. Step 2: Convert to fraction form
    266,418.72/367,646.31 = 145,554.30/x
  3. Step 3: Cross multiply
    266,418.72x = 367,646.31 × 145,554.30
  4. Step 4: Simplify right side
    266,418.72x = 53,512,501,299.63
  5. Step 5: Solve for x
    x = 53,512,501,299.63/266,418.72
  6. Step 6: Final answer
    x = 200,858.64

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