Home / 254,406.55-381,665.18-76,908.93

Finding the Fourth Proportional to 254,406.55, 381,665.18 and 76,908.93

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Solution

The fourth proportional to 254,406.55, 381,665.18 and 76,908.93 is: 115,380.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,406.55 : 381,665.18 = 76,908.93 : x
  2. Step 2: Convert to fraction form
    254,406.55/381,665.18 = 76,908.93/x
  3. Step 3: Cross multiply
    254,406.55x = 381,665.18 × 76,908.93
  4. Step 4: Simplify right side
    254,406.55x = 29,353,460,612.06
  5. Step 5: Solve for x
    x = 29,353,460,612.06/254,406.55
  6. Step 6: Final answer
    x = 115,380.13

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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.