Home / 256,736.46-354,312.66-143,559.18

Finding the Fourth Proportional to 256,736.46, 354,312.66 and 143,559.18

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Solution

The fourth proportional to 256,736.46, 354,312.66 and 143,559.18 is: 198,120.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,736.46 : 354,312.66 = 143,559.18 : x
  2. Step 2: Convert to fraction form
    256,736.46/354,312.66 = 143,559.18/x
  3. Step 3: Cross multiply
    256,736.46x = 354,312.66 × 143,559.18
  4. Step 4: Simplify right side
    256,736.46x = 50,864,834,933.22
  5. Step 5: Solve for x
    x = 50,864,834,933.22/256,736.46
  6. Step 6: Final answer
    x = 198,120.81

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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.