Home / 256,329.92-353,692.32-143,153.12

Finding the Fourth Proportional to 256,329.92, 353,692.32 and 143,153.12

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Solution

The fourth proportional to 256,329.92, 353,692.32 and 143,153.12 is: 197,527.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,329.92 : 353,692.32 = 143,153.12 : x
  2. Step 2: Convert to fraction form
    256,329.92/353,692.32 = 143,153.12/x
  3. Step 3: Cross multiply
    256,329.92x = 353,692.32 × 143,153.12
  4. Step 4: Simplify right side
    256,329.92x = 50,632,159,128.04
  5. Step 5: Solve for x
    x = 50,632,159,128.04/256,329.92
  6. Step 6: Final answer
    x = 197,527.31

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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.