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Finding the Fourth Proportional to 466.07, 642.96 and 298.08

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Solution

The fourth proportional to 466.07, 642.96 and 298.08 is: 411.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    466.07 : 642.96 = 298.08 : x
  2. Step 2: Convert to fraction form
    466.07/642.96 = 298.08/x
  3. Step 3: Cross multiply
    466.07x = 642.96 × 298.08
  4. Step 4: Simplify right side
    466.07x = 191,653.52
  5. Step 5: Solve for x
    x = 191,653.52/466.07
  6. Step 6: Final answer
    x = 411.22

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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.