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Finding the Fourth Proportional to 263,340.30, 395,010.45 and 210,852.30

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Solution

The fourth proportional to 263,340.30, 395,010.45 and 210,852.30 is: 316,278.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,340.30 : 395,010.45 = 210,852.30 : x
  2. Step 2: Convert to fraction form
    263,340.30/395,010.45 = 210,852.30/x
  3. Step 3: Cross multiply
    263,340.30x = 395,010.45 × 210,852.30
  4. Step 4: Simplify right side
    263,340.30x = 83,288,861,906.54
  5. Step 5: Solve for x
    x = 83,288,861,906.54/263,340.30
  6. Step 6: Final answer
    x = 316,278.45

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1.5x scale

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.