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Finding the Fourth Proportional to 504.27, 696.02 and 307.84

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Solution

The fourth proportional to 504.27, 696.02 and 307.84 is: 424.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    504.27 : 696.02 = 307.84 : x
  2. Step 2: Convert to fraction form
    504.27/696.02 = 307.84/x
  3. Step 3: Cross multiply
    504.27x = 696.02 × 307.84
  4. Step 4: Simplify right side
    504.27x = 214,262.13
  5. Step 5: Solve for x
    x = 214,262.13/504.27
  6. Step 6: Final answer
    x = 424.90

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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.