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Finding the Fourth Proportional to 554.02, 831.06 and 207.27

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Solution

The fourth proportional to 554.02, 831.06 and 207.27 is: 310.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    554.02 : 831.06 = 207.27 : x
  2. Step 2: Convert to fraction form
    554.02/831.06 = 207.27/x
  3. Step 3: Cross multiply
    554.02x = 831.06 × 207.27
  4. Step 4: Simplify right side
    554.02x = 172,251.47
  5. Step 5: Solve for x
    x = 172,251.47/554.02
  6. Step 6: Final answer
    x = 310.91

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Why These Related Problems?

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