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Finding the Fourth Proportional to 482,202.42, 665,429.07 and 278,237.34

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Solution

The fourth proportional to 482,202.42, 665,429.07 and 278,237.34 is: 383,961.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,202.42 : 665,429.07 = 278,237.34 : x
  2. Step 2: Convert to fraction form
    482,202.42/665,429.07 = 278,237.34/x
  3. Step 3: Cross multiply
    482,202.42x = 665,429.07 × 278,237.34
  4. Step 4: Simplify right side
    482,202.42x = 185,147,214,395.47
  5. Step 5: Solve for x
    x = 185,147,214,395.47/482,202.42
  6. Step 6: Final answer
    x = 383,961.60

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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.