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Finding the Fourth Proportional to 455,009.54, 682,222.70 and 188,953.70

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Solution

The fourth proportional to 455,009.54, 682,222.70 and 188,953.70 is: 283,309.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,009.54 : 682,222.70 = 188,953.70 : x
  2. Step 2: Convert to fraction form
    455,009.54/682,222.70 = 188,953.70/x
  3. Step 3: Cross multiply
    455,009.54x = 682,222.70 × 188,953.70
  4. Step 4: Simplify right side
    455,009.54x = 128,908,503,388.99
  5. Step 5: Solve for x
    x = 128,908,503,388.99/455,009.54
  6. Step 6: Final answer
    x = 283,309.45

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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.