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Finding the Fourth Proportional to 201,283.89, 277,833.66 and 129,663.69

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Solution

The fourth proportional to 201,283.89, 277,833.66 and 129,663.69 is: 178,975.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,283.89 : 277,833.66 = 129,663.69 : x
  2. Step 2: Convert to fraction form
    201,283.89/277,833.66 = 129,663.69/x
  3. Step 3: Cross multiply
    201,283.89x = 277,833.66 × 129,663.69
  4. Step 4: Simplify right side
    201,283.89x = 36,024,935,524.32
  5. Step 5: Solve for x
    x = 36,024,935,524.32/201,283.89
  6. Step 6: Final answer
    x = 178,975.76

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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.