Home / 290,500.25-400,864.77-161,430.52

Finding the Fourth Proportional to 290,500.25, 400,864.77 and 161,430.52

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Solution

The fourth proportional to 290,500.25, 400,864.77 and 161,430.52 is: 222,759.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,500.25 : 400,864.77 = 161,430.52 : x
  2. Step 2: Convert to fraction form
    290,500.25/400,864.77 = 161,430.52/x
  3. Step 3: Cross multiply
    290,500.25x = 400,864.77 × 161,430.52
  4. Step 4: Simplify right side
    290,500.25x = 64,711,808,270.78
  5. Step 5: Solve for x
    x = 64,711,808,270.78/290,500.25
  6. Step 6: Final answer
    x = 222,759.91

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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.