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Finding the Fourth Proportional to 201,248.76, 277,749.64 and 129,836.53

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Solution

The fourth proportional to 201,248.76, 277,749.64 and 129,836.53 is: 179,191.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,248.76 : 277,749.64 = 129,836.53 : x
  2. Step 2: Convert to fraction form
    201,248.76/277,749.64 = 129,836.53/x
  3. Step 3: Cross multiply
    201,248.76x = 277,749.64 × 129,836.53
  4. Step 4: Simplify right side
    201,248.76x = 36,062,049,466.35
  5. Step 5: Solve for x
    x = 36,062,049,466.35/201,248.76
  6. Step 6: Final answer
    x = 179,191.41

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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.