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Finding the Fourth Proportional to 431.35, 594.95 and 283.93

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Solution

The fourth proportional to 431.35, 594.95 and 283.93 is: 391.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    431.35 : 594.95 = 283.93 : x
  2. Step 2: Convert to fraction form
    431.35/594.95 = 283.93/x
  3. Step 3: Cross multiply
    431.35x = 594.95 × 283.93
  4. Step 4: Simplify right side
    431.35x = 168,921.25
  5. Step 5: Solve for x
    x = 168,921.25/431.35
  6. Step 6: Final answer
    x = 391.61

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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.