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Finding the Fourth Proportional to 235,037.91, 352,696.95 and 85,289.88

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Solution

The fourth proportional to 235,037.91, 352,696.95 and 85,289.88 is: 127,985.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,037.91 : 352,696.95 = 85,289.88 : x
  2. Step 2: Convert to fraction form
    235,037.91/352,696.95 = 85,289.88/x
  3. Step 3: Cross multiply
    235,037.91x = 352,696.95 × 85,289.88
  4. Step 4: Simplify right side
    235,037.91x = 30,081,481,864.48
  5. Step 5: Solve for x
    x = 30,081,481,864.48/235,037.91
  6. Step 6: Final answer
    x = 127,985.66

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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.