Home / 275,138.02-379,529.60-173,001.78

Finding the Fourth Proportional to 275,138.02, 379,529.60 and 173,001.78

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Solution

The fourth proportional to 275,138.02, 379,529.60 and 173,001.78 is: 238,641.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,138.02 : 379,529.60 = 173,001.78 : x
  2. Step 2: Convert to fraction form
    275,138.02/379,529.60 = 173,001.78/x
  3. Step 3: Cross multiply
    275,138.02x = 379,529.60 × 173,001.78
  4. Step 4: Simplify right side
    275,138.02x = 65,659,296,362.69
  5. Step 5: Solve for x
    x = 65,659,296,362.69/275,138.02
  6. Step 6: Final answer
    x = 238,641.31

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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.