Home / 305,253.47-457,873.07-80,629.59

Finding the Fourth Proportional to 305,253.47, 457,873.07 and 80,629.59

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Solution

The fourth proportional to 305,253.47, 457,873.07 and 80,629.59 is: 120,942.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,253.47 : 457,873.07 = 80,629.59 : x
  2. Step 2: Convert to fraction form
    305,253.47/457,873.07 = 80,629.59/x
  3. Step 3: Cross multiply
    305,253.47x = 457,873.07 × 80,629.59
  4. Step 4: Simplify right side
    305,253.47x = 36,918,119,220.02
  5. Step 5: Solve for x
    x = 36,918,119,220.02/305,253.47
  6. Step 6: Final answer
    x = 120,942.50

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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.