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Finding the Fourth Proportional to 455,007.54, 682,219.70 and 188,951.70

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Solution

The fourth proportional to 455,007.54, 682,219.70 and 188,951.70 is: 283,306.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,007.54 : 682,219.70 = 188,951.70 : x
  2. Step 2: Convert to fraction form
    455,007.54/682,219.70 = 188,951.70/x
  3. Step 3: Cross multiply
    455,007.54x = 682,219.70 × 188,951.70
  4. Step 4: Simplify right side
    455,007.54x = 128,906,572,088.49
  5. Step 5: Solve for x
    x = 128,906,572,088.49/455,007.54
  6. Step 6: Final answer
    x = 283,306.45

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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.