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Finding the Fourth Proportional to 290,362.68, 400,743.90 and 177,251.04

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Solution

The fourth proportional to 290,362.68, 400,743.90 and 177,251.04 is: 244,632.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,362.68 : 400,743.90 = 177,251.04 : x
  2. Step 2: Convert to fraction form
    290,362.68/400,743.90 = 177,251.04/x
  3. Step 3: Cross multiply
    290,362.68x = 400,743.90 × 177,251.04
  4. Step 4: Simplify right side
    290,362.68x = 71,032,273,048.66
  5. Step 5: Solve for x
    x = 71,032,273,048.66/290,362.68
  6. Step 6: Final answer
    x = 244,632.93

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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.