Home / 205,620.28-308,416.72-70,671.44

Finding the Fourth Proportional to 205,620.28, 308,416.72 and 70,671.44

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Solution

The fourth proportional to 205,620.28, 308,416.72 and 70,671.44 is: 106,002.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,620.28 : 308,416.72 = 70,671.44 : x
  2. Step 2: Convert to fraction form
    205,620.28/308,416.72 = 70,671.44/x
  3. Step 3: Cross multiply
    205,620.28x = 308,416.72 × 70,671.44
  4. Step 4: Simplify right side
    205,620.28x = 21,796,253,722.48
  5. Step 5: Solve for x
    x = 21,796,253,722.48/205,620.28
  6. Step 6: Final answer
    x = 106,002.45

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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.