Home / 275,394.02-380,057.57-172,090.61

Finding the Fourth Proportional to 275,394.02, 380,057.57 and 172,090.61

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Solution

The fourth proportional to 275,394.02, 380,057.57 and 172,090.61 is: 237,493.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,394.02 : 380,057.57 = 172,090.61 : x
  2. Step 2: Convert to fraction form
    275,394.02/380,057.57 = 172,090.61/x
  3. Step 3: Cross multiply
    275,394.02x = 380,057.57 × 172,090.61
  4. Step 4: Simplify right side
    275,394.02x = 65,404,336,295.68
  5. Step 5: Solve for x
    x = 65,404,336,295.68/275,394.02
  6. Step 6: Final answer
    x = 237,493.67

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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.