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Finding the Fourth Proportional to 554.58, 831.93 and 262.06

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Solution

The fourth proportional to 554.58, 831.93 and 262.06 is: 393.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    554.58 : 831.93 = 262.06 : x
  2. Step 2: Convert to fraction form
    554.58/831.93 = 262.06/x
  3. Step 3: Cross multiply
    554.58x = 831.93 × 262.06
  4. Step 4: Simplify right side
    554.58x = 218,015.58
  5. Step 5: Solve for x
    x = 218,015.58/554.58
  6. Step 6: Final answer
    x = 393.12

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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.