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Finding the Fourth Proportional to 468.92, 703.02 and 283.78

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Solution

The fourth proportional to 468.92, 703.02 and 283.78 is: 425.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    468.92 : 703.02 = 283.78 : x
  2. Step 2: Convert to fraction form
    468.92/703.02 = 283.78/x
  3. Step 3: Cross multiply
    468.92x = 703.02 × 283.78
  4. Step 4: Simplify right side
    468.92x = 199,503.02
  5. Step 5: Solve for x
    x = 199,503.02/468.92
  6. Step 6: Final answer
    x = 425.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.