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Finding the Fourth Proportional to 303,556.30, 455,334.45 and 298,890.70

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Solution

The fourth proportional to 303,556.30, 455,334.45 and 298,890.70 is: 448,336.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,556.30 : 455,334.45 = 298,890.70 : x
  2. Step 2: Convert to fraction form
    303,556.30/455,334.45 = 298,890.70/x
  3. Step 3: Cross multiply
    303,556.30x = 455,334.45 × 298,890.70
  4. Step 4: Simplify right side
    303,556.30x = 136,095,232,494.62
  5. Step 5: Solve for x
    x = 136,095,232,494.62/303,556.30
  6. Step 6: Final answer
    x = 448,336.05

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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.