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Finding the Fourth Proportional to 423.90, 584.88 and 264.45

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Solution

The fourth proportional to 423.90, 584.88 and 264.45 is: 364.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    423.90 : 584.88 = 264.45 : x
  2. Step 2: Convert to fraction form
    423.90/584.88 = 264.45/x
  3. Step 3: Cross multiply
    423.90x = 584.88 × 264.45
  4. Step 4: Simplify right side
    423.90x = 154,671.52
  5. Step 5: Solve for x
    x = 154,671.52/423.90
  6. Step 6: Final answer
    x = 364.88

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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.