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Finding the Fourth Proportional to 251,367, 346,939.32 and 159,426.76

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Solution

The fourth proportional to 251,367, 346,939.32 and 159,426.76 is: 220,042.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,367 : 346,939.32 = 159,426.76 : x
  2. Step 2: Convert to fraction form
    251,367/346,939.32 = 159,426.76/x
  3. Step 3: Cross multiply
    251,367x = 346,939.32 × 159,426.76
  4. Step 4: Simplify right side
    251,367x = 55,311,411,704.20
  5. Step 5: Solve for x
    x = 55,311,411,704.20/251,367
  6. Step 6: Final answer
    x = 220,042.45

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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.