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Finding the Fourth Proportional to 285,502.52, 428,293.09 and 95,977.59

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Solution

The fourth proportional to 285,502.52, 428,293.09 and 95,977.59 is: 143,979.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,502.52 : 428,293.09 = 95,977.59 : x
  2. Step 2: Convert to fraction form
    285,502.52/428,293.09 = 95,977.59/x
  3. Step 3: Cross multiply
    285,502.52x = 428,293.09 × 95,977.59
  4. Step 4: Simplify right side
    285,502.52x = 41,106,538,351.91
  5. Step 5: Solve for x
    x = 41,106,538,351.91/285,502.52
  6. Step 6: Final answer
    x = 143,979.60

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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.