Home / 256,864.02-354,491.04-143,723.22

Finding the Fourth Proportional to 256,864.02, 354,491.04 and 143,723.22

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Solution

The fourth proportional to 256,864.02, 354,491.04 and 143,723.22 is: 198,348.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,864.02 : 354,491.04 = 143,723.22 : x
  2. Step 2: Convert to fraction form
    256,864.02/354,491.04 = 143,723.22/x
  3. Step 3: Cross multiply
    256,864.02x = 354,491.04 × 143,723.22
  4. Step 4: Simplify right side
    256,864.02x = 50,948,593,729.95
  5. Step 5: Solve for x
    x = 50,948,593,729.95/256,864.02
  6. Step 6: Final answer
    x = 198,348.50

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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.