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Finding the Fourth Proportional to 253,026.88, 349,185.17 and 138,303

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Solution

The fourth proportional to 253,026.88, 349,185.17 and 138,303 is: 190,862.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,026.88 : 349,185.17 = 138,303 : x
  2. Step 2: Convert to fraction form
    253,026.88/349,185.17 = 138,303/x
  3. Step 3: Cross multiply
    253,026.88x = 349,185.17 × 138,303
  4. Step 4: Simplify right side
    253,026.88x = 48,293,356,912.27
  5. Step 5: Solve for x
    x = 48,293,356,912.27/253,026.88
  6. Step 6: Final answer
    x = 190,862.56

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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.