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Finding the Fourth Proportional to 245,624.70, 368,437.02 and 68,131.71

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Solution

The fourth proportional to 245,624.70, 368,437.02 and 68,131.71 is: 102,197.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,624.70 : 368,437.02 = 68,131.71 : x
  2. Step 2: Convert to fraction form
    245,624.70/368,437.02 = 68,131.71/x
  3. Step 3: Cross multiply
    245,624.70x = 368,437.02 × 68,131.71
  4. Step 4: Simplify right side
    245,624.70x = 25,102,244,199.90
  5. Step 5: Solve for x
    x = 25,102,244,199.90/245,624.70
  6. Step 6: Final answer
    x = 102,197.56

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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.