Home / 254,000.07-381,228.54-135,772.47

Finding the Fourth Proportional to 254,000.07, 381,228.54 and 135,772.47

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Solution

The fourth proportional to 254,000.07, 381,228.54 and 135,772.47 is: 203,780.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,000.07 : 381,228.54 = 135,772.47 : x
  2. Step 2: Convert to fraction form
    254,000.07/381,228.54 = 135,772.47/x
  3. Step 3: Cross multiply
    254,000.07x = 381,228.54 × 135,772.47
  4. Step 4: Simplify right side
    254,000.07x = 51,760,340,510.29
  5. Step 5: Solve for x
    x = 51,760,340,510.29/254,000.07
  6. Step 6: Final answer
    x = 203,780.81

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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.