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Finding the Fourth Proportional to 371.79, 554.65 and 366.93

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Solution

The fourth proportional to 371.79, 554.65 and 366.93 is: 547.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    371.79 : 554.65 = 366.93 : x
  2. Step 2: Convert to fraction form
    371.79/554.65 = 366.93/x
  3. Step 3: Cross multiply
    371.79x = 554.65 × 366.93
  4. Step 4: Simplify right side
    371.79x = 203,516.81
  5. Step 5: Solve for x
    x = 203,516.81/371.79
  6. Step 6: Final answer
    x = 547.40

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.