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Finding the Fourth Proportional to 455,007.04, 682,218.95 and 188,951.20

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Solution

The fourth proportional to 455,007.04, 682,218.95 and 188,951.20 is: 283,305.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,007.04 : 682,218.95 = 188,951.20 : x
  2. Step 2: Convert to fraction form
    455,007.04/682,218.95 = 188,951.20/x
  3. Step 3: Cross multiply
    455,007.04x = 682,218.95 × 188,951.20
  4. Step 4: Simplify right side
    455,007.04x = 128,906,089,265.24
  5. Step 5: Solve for x
    x = 128,906,089,265.24/455,007.04
  6. Step 6: Final answer
    x = 283,305.70

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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.