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Finding the Fourth Proportional to 254,228.60, 381,278.90 and 104,510.64

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Solution

The fourth proportional to 254,228.60, 381,278.90 and 104,510.64 is: 156,739.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,228.60 : 381,278.90 = 104,510.64 : x
  2. Step 2: Convert to fraction form
    254,228.60/381,278.90 = 104,510.64/x
  3. Step 3: Cross multiply
    254,228.60x = 381,278.90 × 104,510.64
  4. Step 4: Simplify right side
    254,228.60x = 39,847,701,857.50
  5. Step 5: Solve for x
    x = 39,847,701,857.50/254,228.60
  6. Step 6: Final answer
    x = 156,739.65

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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.