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Finding the Fourth Proportional to 553.04, 829.73 and 347.30

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Solution

The fourth proportional to 553.04, 829.73 and 347.30 is: 521.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    553.04 : 829.73 = 347.30 : x
  2. Step 2: Convert to fraction form
    553.04/829.73 = 347.30/x
  3. Step 3: Cross multiply
    553.04x = 829.73 × 347.30
  4. Step 4: Simplify right side
    553.04x = 288,168.17
  5. Step 5: Solve for x
    x = 288,168.17/553.04
  6. Step 6: Final answer
    x = 521.06

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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.