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Finding the Fourth Proportional to 374.23, 558.62 and 346.75

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Solution

The fourth proportional to 374.23, 558.62 and 346.75 is: 517.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    374.23 : 558.62 = 346.75 : x
  2. Step 2: Convert to fraction form
    374.23/558.62 = 346.75/x
  3. Step 3: Cross multiply
    374.23x = 558.62 × 346.75
  4. Step 4: Simplify right side
    374.23x = 193,701.49
  5. Step 5: Solve for x
    x = 193,701.49/374.23
  6. Step 6: Final answer
    x = 517.60

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.