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Finding the Fourth Proportional to 504.05, 695.61 and 282.99

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Solution

The fourth proportional to 504.05, 695.61 and 282.99 is: 390.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    504.05 : 695.61 = 282.99 : x
  2. Step 2: Convert to fraction form
    504.05/695.61 = 282.99/x
  3. Step 3: Cross multiply
    504.05x = 695.61 × 282.99
  4. Step 4: Simplify right side
    504.05x = 196,849.26
  5. Step 5: Solve for x
    x = 196,849.26/504.05
  6. Step 6: Final answer
    x = 390.54

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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.