Home / 254,144.48-381,426.60-127,820.72

Finding the Fourth Proportional to 254,144.48, 381,426.60 and 127,820.72

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Solution

The fourth proportional to 254,144.48, 381,426.60 and 127,820.72 is: 191,836.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,144.48 : 381,426.60 = 127,820.72 : x
  2. Step 2: Convert to fraction form
    254,144.48/381,426.60 = 127,820.72/x
  3. Step 3: Cross multiply
    254,144.48x = 381,426.60 × 127,820.72
  4. Step 4: Simplify right side
    254,144.48x = 48,754,222,639.15
  5. Step 5: Solve for x
    x = 48,754,222,639.15/254,144.48
  6. Step 6: Final answer
    x = 191,836.64

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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.