Home / 352,813.20-486,923.96-209,573.82

Finding the Fourth Proportional to 352,813.20, 486,923.96 and 209,573.82

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Solution

The fourth proportional to 352,813.20, 486,923.96 and 209,573.82 is: 289,236.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,813.20 : 486,923.96 = 209,573.82 : x
  2. Step 2: Convert to fraction form
    352,813.20/486,923.96 = 209,573.82/x
  3. Step 3: Cross multiply
    352,813.20x = 486,923.96 × 209,573.82
  4. Step 4: Simplify right side
    352,813.20x = 102,046,513,298.86
  5. Step 5: Solve for x
    x = 102,046,513,298.86/352,813.20
  6. Step 6: Final answer
    x = 289,236.66

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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.