Home / 290,255.17-400,538.59-161,202.01

Finding the Fourth Proportional to 290,255.17, 400,538.59 and 161,202.01

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Solution

The fourth proportional to 290,255.17, 400,538.59 and 161,202.01 is: 222,451.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,255.17 : 400,538.59 = 161,202.01 : x
  2. Step 2: Convert to fraction form
    290,255.17/400,538.59 = 161,202.01/x
  3. Step 3: Cross multiply
    290,255.17x = 400,538.59 × 161,202.01
  4. Step 4: Simplify right side
    290,255.17x = 64,567,624,386.21
  5. Step 5: Solve for x
    x = 64,567,624,386.21/290,255.17
  6. Step 6: Final answer
    x = 222,451.25

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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.