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Finding the Fourth Proportional to 356,282.17, 491,677.35 and 203,317.31

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Solution

The fourth proportional to 356,282.17, 491,677.35 and 203,317.31 is: 280,582.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,282.17 : 491,677.35 = 203,317.31 : x
  2. Step 2: Convert to fraction form
    356,282.17/491,677.35 = 203,317.31/x
  3. Step 3: Cross multiply
    356,282.17x = 491,677.35 × 203,317.31
  4. Step 4: Simplify right side
    356,282.17x = 99,966,517,419.12
  5. Step 5: Solve for x
    x = 99,966,517,419.12/356,282.17
  6. Step 6: Final answer
    x = 280,582.43

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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.