Home / 305,383.68-457,854.04-205,295.60

Finding the Fourth Proportional to 305,383.68, 457,854.04 and 205,295.60

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Solution

The fourth proportional to 305,383.68, 457,854.04 and 205,295.60 is: 307,794.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,383.68 : 457,854.04 = 205,295.60 : x
  2. Step 2: Convert to fraction form
    305,383.68/457,854.04 = 205,295.60/x
  3. Step 3: Cross multiply
    305,383.68x = 457,854.04 × 205,295.60
  4. Step 4: Simplify right side
    305,383.68x = 93,995,419,854.22
  5. Step 5: Solve for x
    x = 93,995,419,854.22/305,383.68
  6. Step 6: Final answer
    x = 307,794.51

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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.