Home / 290,015.82-400,269.96-169,157.10

Finding the Fourth Proportional to 290,015.82, 400,269.96 and 169,157.10

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Solution

The fourth proportional to 290,015.82, 400,269.96 and 169,157.10 is: 233,464.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,015.82 : 400,269.96 = 169,157.10 : x
  2. Step 2: Convert to fraction form
    290,015.82/400,269.96 = 169,157.10/x
  3. Step 3: Cross multiply
    290,015.82x = 400,269.96 × 169,157.10
  4. Step 4: Simplify right side
    290,015.82x = 67,708,506,651.39
  5. Step 5: Solve for x
    x = 67,708,506,651.39/290,015.82
  6. Step 6: Final answer
    x = 233,464.88

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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.