Home / 454,436.48-681,629.92-138,893.28

Finding the Fourth Proportional to 454,436.48, 681,629.92 and 138,893.28

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Solution

The fourth proportional to 454,436.48, 681,629.92 and 138,893.28 is: 208,332.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,436.48 : 681,629.92 = 138,893.28 : x
  2. Step 2: Convert to fraction form
    454,436.48/681,629.92 = 138,893.28/x
  3. Step 3: Cross multiply
    454,436.48x = 681,629.92 × 138,893.28
  4. Step 4: Simplify right side
    454,436.48x = 94,673,815,334.94
  5. Step 5: Solve for x
    x = 94,673,815,334.94/454,436.48
  6. Step 6: Final answer
    x = 208,332.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.