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Finding the Fourth Proportional to 341,618.40, 512,427.60 and 154,629.90

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Solution

The fourth proportional to 341,618.40, 512,427.60 and 154,629.90 is: 231,944.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,618.40 : 512,427.60 = 154,629.90 : x
  2. Step 2: Convert to fraction form
    341,618.40/512,427.60 = 154,629.90/x
  3. Step 3: Cross multiply
    341,618.40x = 512,427.60 × 154,629.90
  4. Step 4: Simplify right side
    341,618.40x = 79,236,628,545.24
  5. Step 5: Solve for x
    x = 79,236,628,545.24/341,618.40
  6. Step 6: Final answer
    x = 231,944.85

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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.