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Finding the Fourth Proportional to 290,197.88, 400,473.06 and 162,873.47

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Solution

The fourth proportional to 290,197.88, 400,473.06 and 162,873.47 is: 224,765.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,197.88 : 400,473.06 = 162,873.47 : x
  2. Step 2: Convert to fraction form
    290,197.88/400,473.06 = 162,873.47/x
  3. Step 3: Cross multiply
    290,197.88x = 400,473.06 × 162,873.47
  4. Step 4: Simplify right side
    290,197.88x = 65,226,436,423.13
  5. Step 5: Solve for x
    x = 65,226,436,423.13/290,197.88
  6. Step 6: Final answer
    x = 224,765.38

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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.