Home / 256,668.42-354,203.20-143,491.18

Finding the Fourth Proportional to 256,668.42, 354,203.20 and 143,491.18

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Solution

The fourth proportional to 256,668.42, 354,203.20 and 143,491.18 is: 198,018.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,668.42 : 354,203.20 = 143,491.18 : x
  2. Step 2: Convert to fraction form
    256,668.42/354,203.20 = 143,491.18/x
  3. Step 3: Cross multiply
    256,668.42x = 354,203.20 × 143,491.18
  4. Step 4: Simplify right side
    256,668.42x = 50,825,035,127.78
  5. Step 5: Solve for x
    x = 50,825,035,127.78/256,668.42
  6. Step 6: Final answer
    x = 198,018.26

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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.