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Finding the Fourth Proportional to 351.47, 527.29 and 146.07

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Solution

The fourth proportional to 351.47, 527.29 and 146.07 is: 219.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    351.47 : 527.29 = 146.07 : x
  2. Step 2: Convert to fraction form
    351.47/527.29 = 146.07/x
  3. Step 3: Cross multiply
    351.47x = 527.29 × 146.07
  4. Step 4: Simplify right side
    351.47x = 77,021.25
  5. Step 5: Solve for x
    x = 77,021.25/351.47
  6. Step 6: Final answer
    x = 219.14

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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.