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Finding the Fourth Proportional to 290,156.06, 400,423.24 and 162,839.46

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Solution

The fourth proportional to 290,156.06, 400,423.24 and 162,839.46 is: 224,722.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,156.06 : 400,423.24 = 162,839.46 : x
  2. Step 2: Convert to fraction form
    290,156.06/400,423.24 = 162,839.46/x
  3. Step 3: Cross multiply
    290,156.06x = 400,423.24 × 162,839.46
  4. Step 4: Simplify right side
    290,156.06x = 65,204,704,173.05
  5. Step 5: Solve for x
    x = 65,204,704,173.05/290,156.06
  6. Step 6: Final answer
    x = 224,722.88

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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.