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Finding the Fourth Proportional to 482,162.09, 665,378.35 and 278,210.57

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Solution

The fourth proportional to 482,162.09, 665,378.35 and 278,210.57 is: 383,927.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,162.09 : 665,378.35 = 278,210.57 : x
  2. Step 2: Convert to fraction form
    482,162.09/665,378.35 = 278,210.57/x
  3. Step 3: Cross multiply
    482,162.09x = 665,378.35 × 278,210.57
  4. Step 4: Simplify right side
    482,162.09x = 185,115,285,996.74
  5. Step 5: Solve for x
    x = 185,115,285,996.74/482,162.09
  6. Step 6: Final answer
    x = 383,927.50

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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.