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Finding the Fourth Proportional to 371.46, 556.65 and 155.19

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Solution

The fourth proportional to 371.46, 556.65 and 155.19 is: 232.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    371.46 : 556.65 = 155.19 : x
  2. Step 2: Convert to fraction form
    371.46/556.65 = 155.19/x
  3. Step 3: Cross multiply
    371.46x = 556.65 × 155.19
  4. Step 4: Simplify right side
    371.46x = 86,386.51
  5. Step 5: Solve for x
    x = 86,386.51/371.46
  6. Step 6: Final answer
    x = 232.56

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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.