Home / 256,679.04-354,211.20-143,512.32

Finding the Fourth Proportional to 256,679.04, 354,211.20 and 143,512.32

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Solution

The fourth proportional to 256,679.04, 354,211.20 and 143,512.32 is: 198,043.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,679.04 : 354,211.20 = 143,512.32 : x
  2. Step 2: Convert to fraction form
    256,679.04/354,211.20 = 143,512.32/x
  3. Step 3: Cross multiply
    256,679.04x = 354,211.20 × 143,512.32
  4. Step 4: Simplify right side
    256,679.04x = 50,833,671,081.98
  5. Step 5: Solve for x
    x = 50,833,671,081.98/256,679.04
  6. Step 6: Final answer
    x = 198,043.72

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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.