Home / 265,770.48-398,657.31-66,090.87

Finding the Fourth Proportional to 265,770.48, 398,657.31 and 66,090.87

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Solution

The fourth proportional to 265,770.48, 398,657.31 and 66,090.87 is: 99,136.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,770.48 : 398,657.31 = 66,090.87 : x
  2. Step 2: Convert to fraction form
    265,770.48/398,657.31 = 66,090.87/x
  3. Step 3: Cross multiply
    265,770.48x = 398,657.31 × 66,090.87
  4. Step 4: Simplify right side
    265,770.48x = 26,347,608,201.92
  5. Step 5: Solve for x
    x = 26,347,608,201.92/265,770.48
  6. Step 6: Final answer
    x = 99,136.70

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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.