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Finding the Fourth Proportional to 253.93, 381.01 and 124.05

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Solution

The fourth proportional to 253.93, 381.01 and 124.05 is: 186.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    253.93 : 381.01 = 124.05 : x
  2. Step 2: Convert to fraction form
    253.93/381.01 = 124.05/x
  3. Step 3: Cross multiply
    253.93x = 381.01 × 124.05
  4. Step 4: Simplify right side
    253.93x = 47,263.03
  5. Step 5: Solve for x
    x = 47,263.03/253.93
  6. Step 6: Final answer
    x = 186.12

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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.