Home / 254,480.14-381,563.47-85,984.55

Finding the Fourth Proportional to 254,480.14, 381,563.47 and 85,984.55

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Solution

The fourth proportional to 254,480.14, 381,563.47 and 85,984.55 is: 128,923.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,480.14 : 381,563.47 = 85,984.55 : x
  2. Step 2: Convert to fraction form
    254,480.14/381,563.47 = 85,984.55/x
  3. Step 3: Cross multiply
    254,480.14x = 381,563.47 × 85,984.55
  4. Step 4: Simplify right side
    254,480.14x = 32,808,561,356.57
  5. Step 5: Solve for x
    x = 32,808,561,356.57/254,480.14
  6. Step 6: Final answer
    x = 128,923.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.