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Finding the Fourth Proportional to 504.49, 696.13 and 291.79

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Solution

The fourth proportional to 504.49, 696.13 and 291.79 is: 402.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    504.49 : 696.13 = 291.79 : x
  2. Step 2: Convert to fraction form
    504.49/696.13 = 291.79/x
  3. Step 3: Cross multiply
    504.49x = 696.13 × 291.79
  4. Step 4: Simplify right side
    504.49x = 203,123.77
  5. Step 5: Solve for x
    x = 203,123.77/504.49
  6. Step 6: Final answer
    x = 402.63

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.