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Finding the Fourth Proportional to 346.49, 519.81 and 103.01

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Solution

The fourth proportional to 346.49, 519.81 and 103.01 is: 154.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    346.49 : 519.81 = 103.01 : x
  2. Step 2: Convert to fraction form
    346.49/519.81 = 103.01/x
  3. Step 3: Cross multiply
    346.49x = 519.81 × 103.01
  4. Step 4: Simplify right side
    346.49x = 53,544.98
  5. Step 5: Solve for x
    x = 53,544.98/346.49
  6. Step 6: Final answer
    x = 154.54

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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.