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Finding the Fourth Proportional to 250,755.64, 346,043.10 and 137,578.84

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Solution

The fourth proportional to 250,755.64, 346,043.10 and 137,578.84 is: 189,858.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,755.64 : 346,043.10 = 137,578.84 : x
  2. Step 2: Convert to fraction form
    250,755.64/346,043.10 = 137,578.84/x
  3. Step 3: Cross multiply
    250,755.64x = 346,043.10 × 137,578.84
  4. Step 4: Simplify right side
    250,755.64x = 47,608,208,288.00
  5. Step 5: Solve for x
    x = 47,608,208,288.00/250,755.64
  6. Step 6: Final answer
    x = 189,858.97

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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.