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Finding the Fourth Proportional to 272,214.53, 408,320.42 and 69,809.73

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Solution

The fourth proportional to 272,214.53, 408,320.42 and 69,809.73 is: 104,714.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,214.53 : 408,320.42 = 69,809.73 : x
  2. Step 2: Convert to fraction form
    272,214.53/408,320.42 = 69,809.73/x
  3. Step 3: Cross multiply
    272,214.53x = 408,320.42 × 69,809.73
  4. Step 4: Simplify right side
    272,214.53x = 28,504,737,924.64
  5. Step 5: Solve for x
    x = 28,504,737,924.64/272,214.53
  6. Step 6: Final answer
    x = 104,714.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.