Home / 389,411.10-584,149.44-123,165.72

Finding the Fourth Proportional to 389,411.10, 584,149.44 and 123,165.72

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Solution

The fourth proportional to 389,411.10, 584,149.44 and 123,165.72 is: 184,758.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,411.10 : 584,149.44 = 123,165.72 : x
  2. Step 2: Convert to fraction form
    389,411.10/584,149.44 = 123,165.72/x
  3. Step 3: Cross multiply
    389,411.10x = 584,149.44 × 123,165.72
  4. Step 4: Simplify right side
    389,411.10x = 71,947,186,365.20
  5. Step 5: Solve for x
    x = 71,947,186,365.20/389,411.10
  6. Step 6: Final answer
    x = 184,758.95

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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.