Home / 299,724.40-413,601-163,730.80

Finding the Fourth Proportional to 299,724.40, 413,601 and 163,730.80

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Solution

The fourth proportional to 299,724.40, 413,601 and 163,730.80 is: 225,938.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,724.40 : 413,601 = 163,730.80 : x
  2. Step 2: Convert to fraction form
    299,724.40/413,601 = 163,730.80/x
  3. Step 3: Cross multiply
    299,724.40x = 413,601 × 163,730.80
  4. Step 4: Simplify right side
    299,724.40x = 67,719,222,610.80
  5. Step 5: Solve for x
    x = 67,719,222,610.80/299,724.40
  6. Step 6: Final answer
    x = 225,938.30

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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.