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Finding the Fourth Proportional to 454,812.96, 682,221.04 and 139,268.48

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Solution

The fourth proportional to 454,812.96, 682,221.04 and 139,268.48 is: 208,903.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,812.96 : 682,221.04 = 139,268.48 : x
  2. Step 2: Convert to fraction form
    454,812.96/682,221.04 = 139,268.48/x
  3. Step 3: Cross multiply
    454,812.96x = 682,221.04 × 139,268.48
  4. Step 4: Simplify right side
    454,812.96x = 95,011,887,264.82
  5. Step 5: Solve for x
    x = 95,011,887,264.82/454,812.96
  6. Step 6: Final answer
    x = 208,903.21

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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.