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Finding the Fourth Proportional to 290,232.12, 400,520.52 and 162,929.28

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Solution

The fourth proportional to 290,232.12, 400,520.52 and 162,929.28 is: 224,842.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,232.12 : 400,520.52 = 162,929.28 : x
  2. Step 2: Convert to fraction form
    290,232.12/400,520.52 = 162,929.28/x
  3. Step 3: Cross multiply
    290,232.12x = 400,520.52 × 162,929.28
  4. Step 4: Simplify right side
    290,232.12x = 65,256,519,948.83
  5. Step 5: Solve for x
    x = 65,256,519,948.83/290,232.12
  6. Step 6: Final answer
    x = 224,842.52

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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.