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Finding the Fourth Proportional to 351,336.78, 484,902.15 and 215,445.51

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Solution

The fourth proportional to 351,336.78, 484,902.15 and 215,445.51 is: 297,350.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,336.78 : 484,902.15 = 215,445.51 : x
  2. Step 2: Convert to fraction form
    351,336.78/484,902.15 = 215,445.51/x
  3. Step 3: Cross multiply
    351,336.78x = 484,902.15 × 215,445.51
  4. Step 4: Simplify right side
    351,336.78x = 104,469,991,006.85
  5. Step 5: Solve for x
    x = 104,469,991,006.85/351,336.78
  6. Step 6: Final answer
    x = 297,350.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.