Home / 254,288.64-381,341.16-76,740.96

Finding the Fourth Proportional to 254,288.64, 381,341.16 and 76,740.96

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Solution

The fourth proportional to 254,288.64, 381,341.16 and 76,740.96 is: 115,083.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,288.64 : 381,341.16 = 76,740.96 : x
  2. Step 2: Convert to fraction form
    254,288.64/381,341.16 = 76,740.96/x
  3. Step 3: Cross multiply
    254,288.64x = 381,341.16 × 76,740.96
  4. Step 4: Simplify right side
    254,288.64x = 29,264,486,705.91
  5. Step 5: Solve for x
    x = 29,264,486,705.91/254,288.64
  6. Step 6: Final answer
    x = 115,083.74

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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.