Home / 254,192.64-381,205.37-85,667.55

Finding the Fourth Proportional to 254,192.64, 381,205.37 and 85,667.55

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Solution

The fourth proportional to 254,192.64, 381,205.37 and 85,667.55 is: 128,473.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,192.64 : 381,205.37 = 85,667.55 : x
  2. Step 2: Convert to fraction form
    254,192.64/381,205.37 = 85,667.55/x
  3. Step 3: Cross multiply
    254,192.64x = 381,205.37 × 85,667.55
  4. Step 4: Simplify right side
    254,192.64x = 32,656,927,760.38
  5. Step 5: Solve for x
    x = 32,656,927,760.38/254,192.64
  6. Step 6: Final answer
    x = 128,473.15

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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.