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Finding the Fourth Proportional to 290,241.52, 400,511.32 and 162,892.52

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Solution

The fourth proportional to 290,241.52, 400,511.32 and 162,892.52 is: 224,779.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,241.52 : 400,511.32 = 162,892.52 : x
  2. Step 2: Convert to fraction form
    290,241.52/400,511.32 = 162,892.52/x
  3. Step 3: Cross multiply
    290,241.52x = 400,511.32 × 162,892.52
  4. Step 4: Simplify right side
    290,241.52x = 65,240,298,203.33
  5. Step 5: Solve for x
    x = 65,240,298,203.33/290,241.52
  6. Step 6: Final answer
    x = 224,779.34

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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.