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Finding the Fourth Proportional to 254,859.84, 380,380.32 and 250,655.40

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Solution

The fourth proportional to 254,859.84, 380,380.32 and 250,655.40 is: 374,105.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,859.84 : 380,380.32 = 250,655.40 : x
  2. Step 2: Convert to fraction form
    254,859.84/380,380.32 = 250,655.40/x
  3. Step 3: Cross multiply
    254,859.84x = 380,380.32 × 250,655.40
  4. Step 4: Simplify right side
    254,859.84x = 95,344,381,261.73
  5. Step 5: Solve for x
    x = 95,344,381,261.73/254,859.84
  6. Step 6: Final answer
    x = 374,105.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.