Home / 256,784.18-354,361.90-143,606.93

Finding the Fourth Proportional to 256,784.18, 354,361.90 and 143,606.93

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Solution

The fourth proportional to 256,784.18, 354,361.90 and 143,606.93 is: 198,177.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,784.18 : 354,361.90 = 143,606.93 : x
  2. Step 2: Convert to fraction form
    256,784.18/354,361.90 = 143,606.93/x
  3. Step 3: Cross multiply
    256,784.18x = 354,361.90 × 143,606.93
  4. Step 4: Simplify right side
    256,784.18x = 50,888,823,766.00
  5. Step 5: Solve for x
    x = 50,888,823,766.00/256,784.18
  6. Step 6: Final answer
    x = 198,177.41

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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.