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Finding the Fourth Proportional to 471.24, 707.14 and 349.20

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Solution

The fourth proportional to 471.24, 707.14 and 349.20 is: 524.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    471.24 : 707.14 = 349.20 : x
  2. Step 2: Convert to fraction form
    471.24/707.14 = 349.20/x
  3. Step 3: Cross multiply
    471.24x = 707.14 × 349.20
  4. Step 4: Simplify right side
    471.24x = 246,933.29
  5. Step 5: Solve for x
    x = 246,933.29/471.24
  6. Step 6: Final answer
    x = 524.01

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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.