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Finding the Fourth Proportional to 429.74, 593.53 and 289.62

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Solution

The fourth proportional to 429.74, 593.53 and 289.62 is: 399.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    429.74 : 593.53 = 289.62 : x
  2. Step 2: Convert to fraction form
    429.74/593.53 = 289.62/x
  3. Step 3: Cross multiply
    429.74x = 593.53 × 289.62
  4. Step 4: Simplify right side
    429.74x = 171,894.47
  5. Step 5: Solve for x
    x = 171,894.47/429.74
  6. Step 6: Final answer
    x = 399.99

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.