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Finding the Fourth Proportional to 370,487.99, 511,273.92 and 200,722.11

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Solution

The fourth proportional to 370,487.99, 511,273.92 and 200,722.11 is: 276,996.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,487.99 : 511,273.92 = 200,722.11 : x
  2. Step 2: Convert to fraction form
    370,487.99/511,273.92 = 200,722.11/x
  3. Step 3: Cross multiply
    370,487.99x = 511,273.92 × 200,722.11
  4. Step 4: Simplify right side
    370,487.99x = 102,623,980,010.37
  5. Step 5: Solve for x
    x = 102,623,980,010.37/370,487.99
  6. Step 6: Final answer
    x = 276,996.78

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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.