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Finding the Fourth Proportional to 270,486.96, 373,121.88 and 157,297.20

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Solution

The fourth proportional to 270,486.96, 373,121.88 and 157,297.20 is: 216,982.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,486.96 : 373,121.88 = 157,297.20 : x
  2. Step 2: Convert to fraction form
    270,486.96/373,121.88 = 157,297.20/x
  3. Step 3: Cross multiply
    270,486.96x = 373,121.88 × 157,297.20
  4. Step 4: Simplify right side
    270,486.96x = 58,691,026,982.74
  5. Step 5: Solve for x
    x = 58,691,026,982.74/270,486.96
  6. Step 6: Final answer
    x = 216,982.83

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Why These Related Problems?

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