Home / 256,587.76-354,079.96-140,299.10

Finding the Fourth Proportional to 256,587.76, 354,079.96 and 140,299.10

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Solution

The fourth proportional to 256,587.76, 354,079.96 and 140,299.10 is: 193,606.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,587.76 : 354,079.96 = 140,299.10 : x
  2. Step 2: Convert to fraction form
    256,587.76/354,079.96 = 140,299.10/x
  3. Step 3: Cross multiply
    256,587.76x = 354,079.96 × 140,299.10
  4. Step 4: Simplify right side
    256,587.76x = 49,677,099,716.04
  5. Step 5: Solve for x
    x = 49,677,099,716.04/256,587.76
  6. Step 6: Final answer
    x = 193,606.66

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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.