Home / 290,410.28-400,760.98-161,349.34

Finding the Fourth Proportional to 290,410.28, 400,760.98 and 161,349.34

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Solution

The fourth proportional to 290,410.28, 400,760.98 and 161,349.34 is: 222,659.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,410.28 : 400,760.98 = 161,349.34 : x
  2. Step 2: Convert to fraction form
    290,410.28/400,760.98 = 161,349.34/x
  3. Step 3: Cross multiply
    290,410.28x = 400,760.98 × 161,349.34
  4. Step 4: Simplify right side
    290,410.28x = 64,662,518,215.48
  5. Step 5: Solve for x
    x = 64,662,518,215.48/290,410.28
  6. Step 6: Final answer
    x = 222,659.19

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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.