Home / 251,667.80-347,301.33-138,490.55

Finding the Fourth Proportional to 251,667.80, 347,301.33 and 138,490.55

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Solution

The fourth proportional to 251,667.80, 347,301.33 and 138,490.55 is: 191,116.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,667.80 : 347,301.33 = 138,490.55 : x
  2. Step 2: Convert to fraction form
    251,667.80/347,301.33 = 138,490.55/x
  3. Step 3: Cross multiply
    251,667.80x = 347,301.33 × 138,490.55
  4. Step 4: Simplify right side
    251,667.80x = 48,097,952,207.43
  5. Step 5: Solve for x
    x = 48,097,952,207.43/251,667.80
  6. Step 6: Final answer
    x = 191,116.83

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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.