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Finding the Fourth Proportional to 189,015.68, 283,578.88 and 55,899.38

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Solution

The fourth proportional to 189,015.68, 283,578.88 and 55,899.38 is: 83,865.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,015.68 : 283,578.88 = 55,899.38 : x
  2. Step 2: Convert to fraction form
    189,015.68/283,578.88 = 55,899.38/x
  3. Step 3: Cross multiply
    189,015.68x = 283,578.88 × 55,899.38
  4. Step 4: Simplify right side
    189,015.68x = 15,851,883,573.09
  5. Step 5: Solve for x
    x = 15,851,883,573.09/189,015.68
  6. Step 6: Final answer
    x = 83,865.44

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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.