Home / 251,936.04-347,655.78-138,758.78

Finding the Fourth Proportional to 251,936.04, 347,655.78 and 138,758.78

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Solution

The fourth proportional to 251,936.04, 347,655.78 and 138,758.78 is: 191,478.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,936.04 : 347,655.78 = 138,758.78 : x
  2. Step 2: Convert to fraction form
    251,936.04/347,655.78 = 138,758.78/x
  3. Step 3: Cross multiply
    251,936.04x = 347,655.78 × 138,758.78
  4. Step 4: Simplify right side
    251,936.04x = 48,240,291,892.75
  5. Step 5: Solve for x
    x = 48,240,291,892.75/251,936.04
  6. Step 6: Final answer
    x = 191,478.33

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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.