Home / 205,730.76-308,593.91-156,115.56

Finding the Fourth Proportional to 205,730.76, 308,593.91 and 156,115.56

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Solution

The fourth proportional to 205,730.76, 308,593.91 and 156,115.56 is: 234,171.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,730.76 : 308,593.91 = 156,115.56 : x
  2. Step 2: Convert to fraction form
    205,730.76/308,593.91 = 156,115.56/x
  3. Step 3: Cross multiply
    205,730.76x = 308,593.91 × 156,115.56
  4. Step 4: Simplify right side
    205,730.76x = 48,176,308,748.69
  5. Step 5: Solve for x
    x = 48,176,308,748.69/205,730.76
  6. Step 6: Final answer
    x = 234,171.64

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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.