Home / 254,169.21-381,256.55-76,677.76

Finding the Fourth Proportional to 254,169.21, 381,256.55 and 76,677.76

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Solution

The fourth proportional to 254,169.21, 381,256.55 and 76,677.76 is: 115,017.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,169.21 : 381,256.55 = 76,677.76 : x
  2. Step 2: Convert to fraction form
    254,169.21/381,256.55 = 76,677.76/x
  3. Step 3: Cross multiply
    254,169.21x = 381,256.55 × 76,677.76
  4. Step 4: Simplify right side
    254,169.21x = 29,233,897,477.88
  5. Step 5: Solve for x
    x = 29,233,897,477.88/254,169.21
  6. Step 6: Final answer
    x = 115,017.46

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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.