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Finding the Fourth Proportional to 237.87, 355.05 and 210.51

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Solution

The fourth proportional to 237.87, 355.05 and 210.51 is: 314.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    237.87 : 355.05 = 210.51 : x
  2. Step 2: Convert to fraction form
    237.87/355.05 = 210.51/x
  3. Step 3: Cross multiply
    237.87x = 355.05 × 210.51
  4. Step 4: Simplify right side
    237.87x = 74,741.58
  5. Step 5: Solve for x
    x = 74,741.58/237.87
  6. Step 6: Final answer
    x = 314.21

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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.