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Finding the Fourth Proportional to 303,059.16, 418,137.66 and 173,997

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Solution

The fourth proportional to 303,059.16, 418,137.66 and 173,997 is: 240,067.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,059.16 : 418,137.66 = 173,997 : x
  2. Step 2: Convert to fraction form
    303,059.16/418,137.66 = 173,997/x
  3. Step 3: Cross multiply
    303,059.16x = 418,137.66 × 173,997
  4. Step 4: Simplify right side
    303,059.16x = 72,754,698,427.02
  5. Step 5: Solve for x
    x = 72,754,698,427.02/303,059.16
  6. Step 6: Final answer
    x = 240,067.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.