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Finding the Fourth Proportional to 504.36, 696 and 283.30

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Solution

The fourth proportional to 504.36, 696 and 283.30 is: 390.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    504.36 : 696 = 283.30 : x
  2. Step 2: Convert to fraction form
    504.36/696 = 283.30/x
  3. Step 3: Cross multiply
    504.36x = 696 × 283.30
  4. Step 4: Simplify right side
    504.36x = 197,176.80
  5. Step 5: Solve for x
    x = 197,176.80/504.36
  6. Step 6: Final answer
    x = 390.94

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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.