Home / 389,385.64-584,074.62-123,146.20

Finding the Fourth Proportional to 389,385.64, 584,074.62 and 123,146.20

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Solution

The fourth proportional to 389,385.64, 584,074.62 and 123,146.20 is: 184,718.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,385.64 : 584,074.62 = 123,146.20 : x
  2. Step 2: Convert to fraction form
    389,385.64/584,074.62 = 123,146.20/x
  3. Step 3: Cross multiply
    389,385.64x = 584,074.62 × 123,146.20
  4. Step 4: Simplify right side
    389,385.64x = 71,926,569,969.44
  5. Step 5: Solve for x
    x = 71,926,569,969.44/389,385.64
  6. Step 6: Final answer
    x = 184,718.09

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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.