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Finding the Fourth Proportional to 251,788, 347,467.44 and 138,610.24

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Solution

The fourth proportional to 251,788, 347,467.44 and 138,610.24 is: 191,282.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,788 : 347,467.44 = 138,610.24 : x
  2. Step 2: Convert to fraction form
    251,788/347,467.44 = 138,610.24/x
  3. Step 3: Cross multiply
    251,788x = 347,467.44 × 138,610.24
  4. Step 4: Simplify right side
    251,788x = 48,162,545,250.59
  5. Step 5: Solve for x
    x = 48,162,545,250.59/251,788
  6. Step 6: Final answer
    x = 191,282.13

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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.