Home / 245,247.12-338,449-137,837.84

Finding the Fourth Proportional to 245,247.12, 338,449 and 137,837.84

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Solution

The fourth proportional to 245,247.12, 338,449 and 137,837.84 is: 190,220.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,247.12 : 338,449 = 137,837.84 : x
  2. Step 2: Convert to fraction form
    245,247.12/338,449 = 137,837.84/x
  3. Step 3: Cross multiply
    245,247.12x = 338,449 × 137,837.84
  4. Step 4: Simplify right side
    245,247.12x = 46,651,079,110.16
  5. Step 5: Solve for x
    x = 46,651,079,110.16/245,247.12
  6. Step 6: Final answer
    x = 190,220.70

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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.