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Finding the Fourth Proportional to 199,674.64, 299,352.60 and 115,338.64

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Solution

The fourth proportional to 199,674.64, 299,352.60 and 115,338.64 is: 172,915.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,674.64 : 299,352.60 = 115,338.64 : x
  2. Step 2: Convert to fraction form
    199,674.64/299,352.60 = 115,338.64/x
  3. Step 3: Cross multiply
    199,674.64x = 299,352.60 × 115,338.64
  4. Step 4: Simplify right side
    199,674.64x = 34,526,921,764.46
  5. Step 5: Solve for x
    x = 34,526,921,764.46/199,674.64
  6. Step 6: Final answer
    x = 172,915.91

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1.5x scale

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.