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Finding the Fourth Proportional to 161,719.30, 242,578.95 and 151,221.70

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Solution

The fourth proportional to 161,719.30, 242,578.95 and 151,221.70 is: 226,832.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,719.30 : 242,578.95 = 151,221.70 : x
  2. Step 2: Convert to fraction form
    161,719.30/242,578.95 = 151,221.70/x
  3. Step 3: Cross multiply
    161,719.30x = 242,578.95 × 151,221.70
  4. Step 4: Simplify right side
    161,719.30x = 36,683,201,203.22
  5. Step 5: Solve for x
    x = 36,683,201,203.22/161,719.30
  6. Step 6: Final answer
    x = 226,832.55

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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.