Home / 389,406.57-584,142.66-123,161.19

Finding the Fourth Proportional to 389,406.57, 584,142.66 and 123,161.19

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Solution

The fourth proportional to 389,406.57, 584,142.66 and 123,161.19 is: 184,752.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,406.57 : 584,142.66 = 123,161.19 : x
  2. Step 2: Convert to fraction form
    389,406.57/584,142.66 = 123,161.19/x
  3. Step 3: Cross multiply
    389,406.57x = 584,142.66 × 123,161.19
  4. Step 4: Simplify right side
    389,406.57x = 71,943,705,135.37
  5. Step 5: Solve for x
    x = 71,943,705,135.37/389,406.57
  6. Step 6: Final answer
    x = 184,752.16

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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.