Home / 385,262.60-577,895.70-135,944.60

Finding the Fourth Proportional to 385,262.60, 577,895.70 and 135,944.60

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Solution

The fourth proportional to 385,262.60, 577,895.70 and 135,944.60 is: 203,917.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,262.60 : 577,895.70 = 135,944.60 : x
  2. Step 2: Convert to fraction form
    385,262.60/577,895.70 = 135,944.60/x
  3. Step 3: Cross multiply
    385,262.60x = 577,895.70 × 135,944.60
  4. Step 4: Simplify right side
    385,262.60x = 78,561,799,778.22
  5. Step 5: Solve for x
    x = 78,561,799,778.22/385,262.60
  6. Step 6: Final answer
    x = 203,917.54

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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.