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Finding the Fourth Proportional to 429.84, 593.46 and 313.92

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Solution

The fourth proportional to 429.84, 593.46 and 313.92 is: 433.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    429.84 : 593.46 = 313.92 : x
  2. Step 2: Convert to fraction form
    429.84/593.46 = 313.92/x
  3. Step 3: Cross multiply
    429.84x = 593.46 × 313.92
  4. Step 4: Simplify right side
    429.84x = 186,298.96
  5. Step 5: Solve for x
    x = 186,298.96/429.84
  6. Step 6: Final answer
    x = 433.41

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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.