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Finding the Fourth Proportional to 273.16, 409.08 and 157.32

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Solution

The fourth proportional to 273.16, 409.08 and 157.32 is: 235.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    273.16 : 409.08 = 157.32 : x
  2. Step 2: Convert to fraction form
    273.16/409.08 = 157.32/x
  3. Step 3: Cross multiply
    273.16x = 409.08 × 157.32
  4. Step 4: Simplify right side
    273.16x = 64,356.47
  5. Step 5: Solve for x
    x = 64,356.47/273.16
  6. Step 6: Final answer
    x = 235.60

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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.