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Finding the Fourth Proportional to 290,431.17, 400,621.14 and 182,814.39

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Solution

The fourth proportional to 290,431.17, 400,621.14 and 182,814.39 is: 252,174.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,431.17 : 400,621.14 = 182,814.39 : x
  2. Step 2: Convert to fraction form
    290,431.17/400,621.14 = 182,814.39/x
  3. Step 3: Cross multiply
    290,431.17x = 400,621.14 × 182,814.39
  4. Step 4: Simplify right side
    290,431.17x = 73,239,309,330.20
  5. Step 5: Solve for x
    x = 73,239,309,330.20/290,431.17
  6. Step 6: Final answer
    x = 252,174.41

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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.