Home / 285,066.07-393,324.90-170,381.78

Finding the Fourth Proportional to 285,066.07, 393,324.90 and 170,381.78

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Solution

The fourth proportional to 285,066.07, 393,324.90 and 170,381.78 is: 235,087.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,066.07 : 393,324.90 = 170,381.78 : x
  2. Step 2: Convert to fraction form
    285,066.07/393,324.90 = 170,381.78/x
  3. Step 3: Cross multiply
    285,066.07x = 393,324.90 × 170,381.78
  4. Step 4: Simplify right side
    285,066.07x = 67,015,395,449.73
  5. Step 5: Solve for x
    x = 67,015,395,449.73/285,066.07
  6. Step 6: Final answer
    x = 235,087.24

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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.