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Finding the Fourth Proportional to 556.02, 831.87 and 372.54

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Solution

The fourth proportional to 556.02, 831.87 and 372.54 is: 557.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    556.02 : 831.87 = 372.54 : x
  2. Step 2: Convert to fraction form
    556.02/831.87 = 372.54/x
  3. Step 3: Cross multiply
    556.02x = 831.87 × 372.54
  4. Step 4: Simplify right side
    556.02x = 309,904.85
  5. Step 5: Solve for x
    x = 309,904.85/556.02
  6. Step 6: Final answer
    x = 557.36

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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.