Home / 245,584.28-338,925.99-138,147.90

Finding the Fourth Proportional to 245,584.28, 338,925.99 and 138,147.90

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Solution

The fourth proportional to 245,584.28, 338,925.99 and 138,147.90 is: 190,655.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,584.28 : 338,925.99 = 138,147.90 : x
  2. Step 2: Convert to fraction form
    245,584.28/338,925.99 = 138,147.90/x
  3. Step 3: Cross multiply
    245,584.28x = 338,925.99 × 138,147.90
  4. Step 4: Simplify right side
    245,584.28x = 46,821,913,773.92
  5. Step 5: Solve for x
    x = 46,821,913,773.92/245,584.28
  6. Step 6: Final answer
    x = 190,655.17

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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.