Home / 245,319.91-338,551.08-137,889.61

Finding the Fourth Proportional to 245,319.91, 338,551.08 and 137,889.61

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Solution

The fourth proportional to 245,319.91, 338,551.08 and 137,889.61 is: 190,293.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,319.91 : 338,551.08 = 137,889.61 : x
  2. Step 2: Convert to fraction form
    245,319.91/338,551.08 = 137,889.61/x
  3. Step 3: Cross multiply
    245,319.91x = 338,551.08 × 137,889.61
  4. Step 4: Simplify right side
    245,319.91x = 46,682,676,386.28
  5. Step 5: Solve for x
    x = 46,682,676,386.28/245,319.91
  6. Step 6: Final answer
    x = 190,293.06

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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.