Home / 257,440.56-386,161.20-107,598.84

Finding the Fourth Proportional to 257,440.56, 386,161.20 and 107,598.84

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Solution

The fourth proportional to 257,440.56, 386,161.20 and 107,598.84 is: 161,398.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,440.56 : 386,161.20 = 107,598.84 : x
  2. Step 2: Convert to fraction form
    257,440.56/386,161.20 = 107,598.84/x
  3. Step 3: Cross multiply
    257,440.56x = 386,161.20 × 107,598.84
  4. Step 4: Simplify right side
    257,440.56x = 41,550,497,173.01
  5. Step 5: Solve for x
    x = 41,550,497,173.01/257,440.56
  6. Step 6: Final answer
    x = 161,398.41

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1.5x scale

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.