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Finding the Fourth Proportional to 325,963.95, 488,945.93 and 276,756.45

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Solution

The fourth proportional to 325,963.95, 488,945.93 and 276,756.45 is: 415,134.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,963.95 : 488,945.93 = 276,756.45 : x
  2. Step 2: Convert to fraction form
    325,963.95/488,945.93 = 276,756.45/x
  3. Step 3: Cross multiply
    325,963.95x = 488,945.93 × 276,756.45
  4. Step 4: Simplify right side
    325,963.95x = 135,318,938,444.97
  5. Step 5: Solve for x
    x = 135,318,938,444.97/325,963.95
  6. Step 6: Final answer
    x = 415,134.68

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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.