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Finding the Fourth Proportional to 417.38, 576.07 and 277.51

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Solution

The fourth proportional to 417.38, 576.07 and 277.51 is: 383.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    417.38 : 576.07 = 277.51 : x
  2. Step 2: Convert to fraction form
    417.38/576.07 = 277.51/x
  3. Step 3: Cross multiply
    417.38x = 576.07 × 277.51
  4. Step 4: Simplify right side
    417.38x = 159,865.19
  5. Step 5: Solve for x
    x = 159,865.19/417.38
  6. Step 6: Final answer
    x = 383.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.