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Finding the Fourth Proportional to 504.68, 695.71 and 354.83

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Solution

The fourth proportional to 504.68, 695.71 and 354.83 is: 489.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    504.68 : 695.71 = 354.83 : x
  2. Step 2: Convert to fraction form
    504.68/695.71 = 354.83/x
  3. Step 3: Cross multiply
    504.68x = 695.71 × 354.83
  4. Step 4: Simplify right side
    504.68x = 246,858.78
  5. Step 5: Solve for x
    x = 246,858.78/504.68
  6. Step 6: Final answer
    x = 489.14

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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.