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Finding the Fourth Proportional to 451,332, 677,039.04 and 118,908

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Solution

The fourth proportional to 451,332, 677,039.04 and 118,908 is: 178,372.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,332 : 677,039.04 = 118,908 : x
  2. Step 2: Convert to fraction form
    451,332/677,039.04 = 118,908/x
  3. Step 3: Cross multiply
    451,332x = 677,039.04 × 118,908
  4. Step 4: Simplify right side
    451,332x = 80,505,358,168.32
  5. Step 5: Solve for x
    x = 80,505,358,168.32/451,332
  6. Step 6: Final answer
    x = 178,372.81

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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.