Home / 251,515.72-347,098.26-138,341.44

Finding the Fourth Proportional to 251,515.72, 347,098.26 and 138,341.44

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Solution

The fourth proportional to 251,515.72, 347,098.26 and 138,341.44 is: 190,914.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,515.72 : 347,098.26 = 138,341.44 : x
  2. Step 2: Convert to fraction form
    251,515.72/347,098.26 = 138,341.44/x
  3. Step 3: Cross multiply
    251,515.72x = 347,098.26 × 138,341.44
  4. Step 4: Simplify right side
    251,515.72x = 48,018,073,109.89
  5. Step 5: Solve for x
    x = 48,018,073,109.89/251,515.72
  6. Step 6: Final answer
    x = 190,914.80

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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.