Home / 256,780.53-354,369.33-142,058.61

Finding the Fourth Proportional to 256,780.53, 354,369.33 and 142,058.61

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Solution

The fourth proportional to 256,780.53, 354,369.33 and 142,058.61 is: 196,047.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,780.53 : 354,369.33 = 142,058.61 : x
  2. Step 2: Convert to fraction form
    256,780.53/354,369.33 = 142,058.61/x
  3. Step 3: Cross multiply
    256,780.53x = 354,369.33 × 142,058.61
  4. Step 4: Simplify right side
    256,780.53x = 50,341,214,446.43
  5. Step 5: Solve for x
    x = 50,341,214,446.43/256,780.53
  6. Step 6: Final answer
    x = 196,047.63

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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.