Home / 260,828.72-391,388.45-140,883.25

Finding the Fourth Proportional to 260,828.72, 391,388.45 and 140,883.25

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Solution

The fourth proportional to 260,828.72, 391,388.45 and 140,883.25 is: 211,403.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,828.72 : 391,388.45 = 140,883.25 : x
  2. Step 2: Convert to fraction form
    260,828.72/391,388.45 = 140,883.25/x
  3. Step 3: Cross multiply
    260,828.72x = 391,388.45 × 140,883.25
  4. Step 4: Simplify right side
    260,828.72x = 55,140,076,848.46
  5. Step 5: Solve for x
    x = 55,140,076,848.46/260,828.72
  6. Step 6: Final answer
    x = 211,403.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.