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Finding the Fourth Proportional to 216,428.49, 324,648.27 and 102,549.58

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Solution

The fourth proportional to 216,428.49, 324,648.27 and 102,549.58 is: 153,826.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,428.49 : 324,648.27 = 102,549.58 : x
  2. Step 2: Convert to fraction form
    216,428.49/324,648.27 = 102,549.58/x
  3. Step 3: Cross multiply
    216,428.49x = 324,648.27 × 102,549.58
  4. Step 4: Simplify right side
    216,428.49x = 33,292,542,924.61
  5. Step 5: Solve for x
    x = 33,292,542,924.61/216,428.49
  6. Step 6: Final answer
    x = 153,826.99

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.