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Finding the Fourth Proportional to 254,687.68, 381,486.12 and 134,364.52

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Solution

The fourth proportional to 254,687.68, 381,486.12 and 134,364.52 is: 201,259.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,687.68 : 381,486.12 = 134,364.52 : x
  2. Step 2: Convert to fraction form
    254,687.68/381,486.12 = 134,364.52/x
  3. Step 3: Cross multiply
    254,687.68x = 381,486.12 × 134,364.52
  4. Step 4: Simplify right side
    254,687.68x = 51,258,199,400.46
  5. Step 5: Solve for x
    x = 51,258,199,400.46/254,687.68
  6. Step 6: Final answer
    x = 201,259.05

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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.