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Finding the Fourth Proportional to 384,305.46, 530,497.86 and 248,350.61

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Solution

The fourth proportional to 384,305.46, 530,497.86 and 248,350.61 is: 342,824.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,305.46 : 530,497.86 = 248,350.61 : x
  2. Step 2: Convert to fraction form
    384,305.46/530,497.86 = 248,350.61/x
  3. Step 3: Cross multiply
    384,305.46x = 530,497.86 × 248,350.61
  4. Step 4: Simplify right side
    384,305.46x = 131,749,464,545.57
  5. Step 5: Solve for x
    x = 131,749,464,545.57/384,305.46
  6. Step 6: Final answer
    x = 342,824.86

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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.