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Finding the Fourth Proportional to 212,151.32, 292,696 and 131,549.84

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Solution

The fourth proportional to 212,151.32, 292,696 and 131,549.84 is: 181,493.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,151.32 : 292,696 = 131,549.84 : x
  2. Step 2: Convert to fraction form
    212,151.32/292,696 = 131,549.84/x
  3. Step 3: Cross multiply
    212,151.32x = 292,696 × 131,549.84
  4. Step 4: Simplify right side
    212,151.32x = 38,504,111,968.64
  5. Step 5: Solve for x
    x = 38,504,111,968.64/212,151.32
  6. Step 6: Final answer
    x = 181,493.62

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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.