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Finding the Fourth Proportional to 237.65, 354.40 and 203.63

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Solution

The fourth proportional to 237.65, 354.40 and 203.63 is: 303.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    237.65 : 354.40 = 203.63 : x
  2. Step 2: Convert to fraction form
    237.65/354.40 = 203.63/x
  3. Step 3: Cross multiply
    237.65x = 354.40 × 203.63
  4. Step 4: Simplify right side
    237.65x = 72,164.19
  5. Step 5: Solve for x
    x = 72,164.19/237.65
  6. Step 6: Final answer
    x = 303.66

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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.