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Finding the Fourth Proportional to 504.64, 696.39 and 283.59

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Solution

The fourth proportional to 504.64, 696.39 and 283.59 is: 391.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    504.64 : 696.39 = 283.59 : x
  2. Step 2: Convert to fraction form
    504.64/696.39 = 283.59/x
  3. Step 3: Cross multiply
    504.64x = 696.39 × 283.59
  4. Step 4: Simplify right side
    504.64x = 197,489.24
  5. Step 5: Solve for x
    x = 197,489.24/504.64
  6. Step 6: Final answer
    x = 391.35

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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.