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Finding the Fourth Proportional to 374.50, 562.03 and 259.75

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Solution

The fourth proportional to 374.50, 562.03 and 259.75 is: 389.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    374.50 : 562.03 = 259.75 : x
  2. Step 2: Convert to fraction form
    374.50/562.03 = 259.75/x
  3. Step 3: Cross multiply
    374.50x = 562.03 × 259.75
  4. Step 4: Simplify right side
    374.50x = 145,984.48
  5. Step 5: Solve for x
    x = 145,984.48/374.50
  6. Step 6: Final answer
    x = 389.82

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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.