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Finding the Fourth Proportional to 429.19, 592.21 and 242.62

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Solution

The fourth proportional to 429.19, 592.21 and 242.62 is: 334.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    429.19 : 592.21 = 242.62 : x
  2. Step 2: Convert to fraction form
    429.19/592.21 = 242.62/x
  3. Step 3: Cross multiply
    429.19x = 592.21 × 242.62
  4. Step 4: Simplify right side
    429.19x = 143,680.81
  5. Step 5: Solve for x
    x = 143,680.81/429.19
  6. Step 6: Final answer
    x = 334.77

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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.