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Finding the Fourth Proportional to 283.94, 425.28 and 210.93

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Solution

The fourth proportional to 283.94, 425.28 and 210.93 is: 315.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    283.94 : 425.28 = 210.93 : x
  2. Step 2: Convert to fraction form
    283.94/425.28 = 210.93/x
  3. Step 3: Cross multiply
    283.94x = 425.28 × 210.93
  4. Step 4: Simplify right side
    283.94x = 89,702.50
  5. Step 5: Solve for x
    x = 89,702.50/283.94
  6. Step 6: Final answer
    x = 315.92

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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.