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Finding the Fourth Proportional to 290,987.10, 401,617.44 and 182,141.91

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Solution

The fourth proportional to 290,987.10, 401,617.44 and 182,141.91 is: 251,390.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,987.10 : 401,617.44 = 182,141.91 : x
  2. Step 2: Convert to fraction form
    290,987.10/401,617.44 = 182,141.91/x
  3. Step 3: Cross multiply
    290,987.10x = 401,617.44 × 182,141.91
  4. Step 4: Simplify right side
    290,987.10x = 73,151,367,610.91
  5. Step 5: Solve for x
    x = 73,151,367,610.91/290,987.10
  6. Step 6: Final answer
    x = 251,390.41

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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.