Home / 245,319.41-338,550.39-137,889.11

Finding the Fourth Proportional to 245,319.41, 338,550.39 and 137,889.11

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Solution

The fourth proportional to 245,319.41, 338,550.39 and 137,889.11 is: 190,292.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,319.41 : 338,550.39 = 137,889.11 : x
  2. Step 2: Convert to fraction form
    245,319.41/338,550.39 = 137,889.11/x
  3. Step 3: Cross multiply
    245,319.41x = 338,550.39 × 137,889.11
  4. Step 4: Simplify right side
    245,319.41x = 46,682,411,967.25
  5. Step 5: Solve for x
    x = 46,682,411,967.25/245,319.41
  6. Step 6: Final answer
    x = 190,292.37

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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.