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Finding the Fourth Proportional to 290,226.70, 400,490.89 and 162,877.69

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Solution

The fourth proportional to 290,226.70, 400,490.89 and 162,877.69 is: 224,758.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,226.70 : 400,490.89 = 162,877.69 : x
  2. Step 2: Convert to fraction form
    290,226.70/400,490.89 = 162,877.69/x
  3. Step 3: Cross multiply
    290,226.70x = 400,490.89 × 162,877.69
  4. Step 4: Simplify right side
    290,226.70x = 65,231,029,620.82
  5. Step 5: Solve for x
    x = 65,231,029,620.82/290,226.70
  6. Step 6: Final answer
    x = 224,758.89

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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.