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Finding the Fourth Proportional to 344,615.72, 516,948.24 and 91,894.88

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Solution

The fourth proportional to 344,615.72, 516,948.24 and 91,894.88 is: 137,848.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,615.72 : 516,948.24 = 91,894.88 : x
  2. Step 2: Convert to fraction form
    344,615.72/516,948.24 = 91,894.88/x
  3. Step 3: Cross multiply
    344,615.72x = 516,948.24 × 91,894.88
  4. Step 4: Simplify right side
    344,615.72x = 47,504,893,896.27
  5. Step 5: Solve for x
    x = 47,504,893,896.27/344,615.72
  6. Step 6: Final answer
    x = 137,848.89

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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.