Home / 290,799.18-401,299.38-163,474.88

Finding the Fourth Proportional to 290,799.18, 401,299.38 and 163,474.88

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Solution

The fourth proportional to 290,799.18, 401,299.38 and 163,474.88 is: 225,593.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,799.18 : 401,299.38 = 163,474.88 : x
  2. Step 2: Convert to fraction form
    290,799.18/401,299.38 = 163,474.88/x
  3. Step 3: Cross multiply
    290,799.18x = 401,299.38 × 163,474.88
  4. Step 4: Simplify right side
    290,799.18x = 65,602,365,983.08
  5. Step 5: Solve for x
    x = 65,602,365,983.08/290,799.18
  6. Step 6: Final answer
    x = 225,593.37

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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.