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Finding the Fourth Proportional to 423.64, 584.70 and 246.63

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Solution

The fourth proportional to 423.64, 584.70 and 246.63 is: 340.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    423.64 : 584.70 = 246.63 : x
  2. Step 2: Convert to fraction form
    423.64/584.70 = 246.63/x
  3. Step 3: Cross multiply
    423.64x = 584.70 × 246.63
  4. Step 4: Simplify right side
    423.64x = 144,204.56
  5. Step 5: Solve for x
    x = 144,204.56/423.64
  6. Step 6: Final answer
    x = 340.39

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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.