Home / 257,039.19-354,842.78-161,598.51

Finding the Fourth Proportional to 257,039.19, 354,842.78 and 161,598.51

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Solution

The fourth proportional to 257,039.19, 354,842.78 and 161,598.51 is: 223,086.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,039.19 : 354,842.78 = 161,598.51 : x
  2. Step 2: Convert to fraction form
    257,039.19/354,842.78 = 161,598.51/x
  3. Step 3: Cross multiply
    257,039.19x = 354,842.78 × 161,598.51
  4. Step 4: Simplify right side
    257,039.19x = 57,342,063,724.27
  5. Step 5: Solve for x
    x = 57,342,063,724.27/257,039.19
  6. Step 6: Final answer
    x = 223,086.85

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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.