Home / 254,008.10-381,240.57-135,780.50

Finding the Fourth Proportional to 254,008.10, 381,240.57 and 135,780.50

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Solution

The fourth proportional to 254,008.10, 381,240.57 and 135,780.50 is: 203,792.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,008.10 : 381,240.57 = 135,780.50 : x
  2. Step 2: Convert to fraction form
    254,008.10/381,240.57 = 135,780.50/x
  3. Step 3: Cross multiply
    254,008.10x = 381,240.57 × 135,780.50
  4. Step 4: Simplify right side
    254,008.10x = 51,765,035,214.89
  5. Step 5: Solve for x
    x = 51,765,035,214.89/254,008.10
  6. Step 6: Final answer
    x = 203,792.85

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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.