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Finding the Fourth Proportional to 558.66, 835.60 and 402.84

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Solution

The fourth proportional to 558.66, 835.60 and 402.84 is: 602.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    558.66 : 835.60 = 402.84 : x
  2. Step 2: Convert to fraction form
    558.66/835.60 = 402.84/x
  3. Step 3: Cross multiply
    558.66x = 835.60 × 402.84
  4. Step 4: Simplify right side
    558.66x = 336,612.10
  5. Step 5: Solve for x
    x = 336,612.10/558.66
  6. Step 6: Final answer
    x = 602.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.