Home / 245,853.20-339,252.36-138,406.16

Finding the Fourth Proportional to 245,853.20, 339,252.36 and 138,406.16

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Solution

The fourth proportional to 245,853.20, 339,252.36 and 138,406.16 is: 190,986.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,853.20 : 339,252.36 = 138,406.16 : x
  2. Step 2: Convert to fraction form
    245,853.20/339,252.36 = 138,406.16/x
  3. Step 3: Cross multiply
    245,853.20x = 339,252.36 × 138,406.16
  4. Step 4: Simplify right side
    245,853.20x = 46,954,616,418.54
  5. Step 5: Solve for x
    x = 46,954,616,418.54/245,853.20
  6. Step 6: Final answer
    x = 190,986.40

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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.