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Finding the Fourth Proportional to 237.69, 357.06 and 215.01

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Solution

The fourth proportional to 237.69, 357.06 and 215.01 is: 322.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    237.69 : 357.06 = 215.01 : x
  2. Step 2: Convert to fraction form
    237.69/357.06 = 215.01/x
  3. Step 3: Cross multiply
    237.69x = 357.06 × 215.01
  4. Step 4: Simplify right side
    237.69x = 76,771.47
  5. Step 5: Solve for x
    x = 76,771.47/237.69
  6. Step 6: Final answer
    x = 322.99

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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.