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Finding the Fourth Proportional to 275,617.02, 380,672.48 and 220,617.82

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Solution

The fourth proportional to 275,617.02, 380,672.48 and 220,617.82 is: 304,709.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,617.02 : 380,672.48 = 220,617.82 : x
  2. Step 2: Convert to fraction form
    275,617.02/380,672.48 = 220,617.82/x
  3. Step 3: Cross multiply
    275,617.02x = 380,672.48 × 220,617.82
  4. Step 4: Simplify right side
    275,617.02x = 83,983,132,271.46
  5. Step 5: Solve for x
    x = 83,983,132,271.46/275,617.02
  6. Step 6: Final answer
    x = 304,709.53

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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.