Home / 265,518.10-398,163.75-123,275.62

Finding the Fourth Proportional to 265,518.10, 398,163.75 and 123,275.62

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Solution

The fourth proportional to 265,518.10, 398,163.75 and 123,275.62 is: 184,860.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,518.10 : 398,163.75 = 123,275.62 : x
  2. Step 2: Convert to fraction form
    265,518.10/398,163.75 = 123,275.62/x
  3. Step 3: Cross multiply
    265,518.10x = 398,163.75 × 123,275.62
  4. Step 4: Simplify right side
    265,518.10x = 49,083,883,142.78
  5. Step 5: Solve for x
    x = 49,083,883,142.78/265,518.10
  6. Step 6: Final answer
    x = 184,860.78

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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.