Home / 290,143.26-400,426.47-162,819.36

Finding the Fourth Proportional to 290,143.26, 400,426.47 and 162,819.36

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Solution

The fourth proportional to 290,143.26, 400,426.47 and 162,819.36 is: 224,706.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,143.26 : 400,426.47 = 162,819.36 : x
  2. Step 2: Convert to fraction form
    290,143.26/400,426.47 = 162,819.36/x
  3. Step 3: Cross multiply
    290,143.26x = 400,426.47 × 162,819.36
  4. Step 4: Simplify right side
    290,143.26x = 65,197,181,572.46
  5. Step 5: Solve for x
    x = 65,197,181,572.46/290,143.26
  6. Step 6: Final answer
    x = 224,706.86

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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.