Home / 389,369.09-584,087.66-108,887.15

Finding the Fourth Proportional to 389,369.09, 584,087.66 and 108,887.15

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Solution

The fourth proportional to 389,369.09, 584,087.66 and 108,887.15 is: 163,340.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,369.09 : 584,087.66 = 108,887.15 : x
  2. Step 2: Convert to fraction form
    389,369.09/584,087.66 = 108,887.15/x
  3. Step 3: Cross multiply
    389,369.09x = 584,087.66 × 108,887.15
  4. Step 4: Simplify right side
    389,369.09x = 63,599,641,971.68
  5. Step 5: Solve for x
    x = 63,599,641,971.68/389,369.09
  6. Step 6: Final answer
    x = 163,340.24

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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.