Home / 245,138.96-338,293.08-137,713.52

Finding the Fourth Proportional to 245,138.96, 338,293.08 and 137,713.52

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Solution

The fourth proportional to 245,138.96, 338,293.08 and 137,713.52 is: 190,045.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,138.96 : 338,293.08 = 137,713.52 : x
  2. Step 2: Convert to fraction form
    245,138.96/338,293.08 = 137,713.52/x
  3. Step 3: Cross multiply
    245,138.96x = 338,293.08 × 137,713.52
  4. Step 4: Simplify right side
    245,138.96x = 46,587,530,838.44
  5. Step 5: Solve for x
    x = 46,587,530,838.44/245,138.96
  6. Step 6: Final answer
    x = 190,045.40

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1.5x scale

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.