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Finding the Fourth Proportional to 290,265.93, 400,580.24 and 161,204.99

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Solution

The fourth proportional to 290,265.93, 400,580.24 and 161,204.99 is: 222,470.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,265.93 : 400,580.24 = 161,204.99 : x
  2. Step 2: Convert to fraction form
    290,265.93/400,580.24 = 161,204.99/x
  3. Step 3: Cross multiply
    290,265.93x = 400,580.24 × 161,204.99
  4. Step 4: Simplify right side
    290,265.93x = 64,575,530,774.47
  5. Step 5: Solve for x
    x = 64,575,530,774.47/290,265.93
  6. Step 6: Final answer
    x = 222,470.24

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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.