Home / 257,072.12-354,773.10-161,543.48

Finding the Fourth Proportional to 257,072.12, 354,773.10 and 161,543.48

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Solution

The fourth proportional to 257,072.12, 354,773.10 and 161,543.48 is: 222,938.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,072.12 : 354,773.10 = 161,543.48 : x
  2. Step 2: Convert to fraction form
    257,072.12/354,773.10 = 161,543.48/x
  3. Step 3: Cross multiply
    257,072.12x = 354,773.10 × 161,543.48
  4. Step 4: Simplify right side
    257,072.12x = 57,311,281,184.39
  5. Step 5: Solve for x
    x = 57,311,281,184.39/257,072.12
  6. Step 6: Final answer
    x = 222,938.53

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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.