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Finding the Fourth Proportional to 372.68, 559.04 and 210

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Solution

The fourth proportional to 372.68, 559.04 and 210 is: 315.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    372.68 : 559.04 = 210 : x
  2. Step 2: Convert to fraction form
    372.68/559.04 = 210/x
  3. Step 3: Cross multiply
    372.68x = 559.04 × 210
  4. Step 4: Simplify right side
    372.68x = 117,398.40
  5. Step 5: Solve for x
    x = 117,398.40/372.68
  6. Step 6: Final answer
    x = 315.01

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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.