Home / 265,565.08-398,465.31-139,175.25

Finding the Fourth Proportional to 265,565.08, 398,465.31 and 139,175.25

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Solution

The fourth proportional to 265,565.08, 398,465.31 and 139,175.25 is: 208,824.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,565.08 : 398,465.31 = 139,175.25 : x
  2. Step 2: Convert to fraction form
    265,565.08/398,465.31 = 139,175.25/x
  3. Step 3: Cross multiply
    265,565.08x = 398,465.31 × 139,175.25
  4. Step 4: Simplify right side
    265,565.08x = 55,456,507,380.38
  5. Step 5: Solve for x
    x = 55,456,507,380.38/265,565.08
  6. Step 6: Final answer
    x = 208,824.55

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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.