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Finding the Fourth Proportional to 215,422.80, 297,269.52 and 119,927.04

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Solution

The fourth proportional to 215,422.80, 297,269.52 and 119,927.04 is: 165,491.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,422.80 : 297,269.52 = 119,927.04 : x
  2. Step 2: Convert to fraction form
    215,422.80/297,269.52 = 119,927.04/x
  3. Step 3: Cross multiply
    215,422.80x = 297,269.52 × 119,927.04
  4. Step 4: Simplify right side
    215,422.80x = 35,650,653,615.82
  5. Step 5: Solve for x
    x = 35,650,653,615.82/215,422.80
  6. Step 6: Final answer
    x = 165,491.55

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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.