Home / 245,262.30-338,460.20-137,830.02

Finding the Fourth Proportional to 245,262.30, 338,460.20 and 137,830.02

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Solution

The fourth proportional to 245,262.30, 338,460.20 and 137,830.02 is: 190,204.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,262.30 : 338,460.20 = 137,830.02 : x
  2. Step 2: Convert to fraction form
    245,262.30/338,460.20 = 137,830.02/x
  3. Step 3: Cross multiply
    245,262.30x = 338,460.20 × 137,830.02
  4. Step 4: Simplify right side
    245,262.30x = 46,649,976,135.20
  5. Step 5: Solve for x
    x = 46,649,976,135.20/245,262.30
  6. Step 6: Final answer
    x = 190,204.43

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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.