Home / 245,632.42-338,975.86-138,202.66

Finding the Fourth Proportional to 245,632.42, 338,975.86 and 138,202.66

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Solution

The fourth proportional to 245,632.42, 338,975.86 and 138,202.66 is: 190,721.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,632.42 : 338,975.86 = 138,202.66 : x
  2. Step 2: Convert to fraction form
    245,632.42/338,975.86 = 138,202.66/x
  3. Step 3: Cross multiply
    245,632.42x = 338,975.86 × 138,202.66
  4. Step 4: Simplify right side
    245,632.42x = 46,847,365,182.28
  5. Step 5: Solve for x
    x = 46,847,365,182.28/245,632.42
  6. Step 6: Final answer
    x = 190,721.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.