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Finding the Fourth Proportional to 270.33, 373.12 and 172.07

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Solution

The fourth proportional to 270.33, 373.12 and 172.07 is: 237.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    270.33 : 373.12 = 172.07 : x
  2. Step 2: Convert to fraction form
    270.33/373.12 = 172.07/x
  3. Step 3: Cross multiply
    270.33x = 373.12 × 172.07
  4. Step 4: Simplify right side
    270.33x = 64,202.76
  5. Step 5: Solve for x
    x = 64,202.76/270.33
  6. Step 6: Final answer
    x = 237.50

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.