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Finding the Fourth Proportional to 389,366.16, 584,121.32 and 123,193.68

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Solution

The fourth proportional to 389,366.16, 584,121.32 and 123,193.68 is: 184,813.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,366.16 : 584,121.32 = 123,193.68 : x
  2. Step 2: Convert to fraction form
    389,366.16/584,121.32 = 123,193.68/x
  3. Step 3: Cross multiply
    389,366.16x = 584,121.32 × 123,193.68
  4. Step 4: Simplify right side
    389,366.16x = 71,960,054,977.26
  5. Step 5: Solve for x
    x = 71,960,054,977.26/389,366.16
  6. Step 6: Final answer
    x = 184,813.33

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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.