Home / 290,261.19-400,564.37-161,208.01

Finding the Fourth Proportional to 290,261.19, 400,564.37 and 161,208.01

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Solution

The fourth proportional to 290,261.19, 400,564.37 and 161,208.01 is: 222,469.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,261.19 : 400,564.37 = 161,208.01 : x
  2. Step 2: Convert to fraction form
    290,261.19/400,564.37 = 161,208.01/x
  3. Step 3: Cross multiply
    290,261.19x = 400,564.37 × 161,208.01
  4. Step 4: Simplify right side
    290,261.19x = 64,574,184,964.60
  5. Step 5: Solve for x
    x = 64,574,184,964.60/290,261.19
  6. Step 6: Final answer
    x = 222,469.24

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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.