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Finding the Fourth Proportional to 367.60, 507.30 and 210.25

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Solution

The fourth proportional to 367.60, 507.30 and 210.25 is: 290.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    367.60 : 507.30 = 210.25 : x
  2. Step 2: Convert to fraction form
    367.60/507.30 = 210.25/x
  3. Step 3: Cross multiply
    367.60x = 507.30 × 210.25
  4. Step 4: Simplify right side
    367.60x = 106,658.77
  5. Step 5: Solve for x
    x = 106,658.77/367.60
  6. Step 6: Final answer
    x = 290.15

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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.