Home / 285,057.14-393,316.37-170,318.55

Finding the Fourth Proportional to 285,057.14, 393,316.37 and 170,318.55

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Solution

The fourth proportional to 285,057.14, 393,316.37 and 170,318.55 is: 235,002.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,057.14 : 393,316.37 = 170,318.55 : x
  2. Step 2: Convert to fraction form
    285,057.14/393,316.37 = 170,318.55/x
  3. Step 3: Cross multiply
    285,057.14x = 393,316.37 × 170,318.55
  4. Step 4: Simplify right side
    285,057.14x = 66,989,073,829.66
  5. Step 5: Solve for x
    x = 66,989,073,829.66/285,057.14
  6. Step 6: Final answer
    x = 235,002.27

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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.