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Finding the Fourth Proportional to 505,551.89, 758,343.36 and 221,096.09

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Solution

The fourth proportional to 505,551.89, 758,343.36 and 221,096.09 is: 331,650.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,551.89 : 758,343.36 = 221,096.09 : x
  2. Step 2: Convert to fraction form
    505,551.89/758,343.36 = 221,096.09/x
  3. Step 3: Cross multiply
    505,551.89x = 758,343.36 × 221,096.09
  4. Step 4: Simplify right side
    505,551.89x = 167,666,751,773.46
  5. Step 5: Solve for x
    x = 167,666,751,773.46/505,551.89
  6. Step 6: Final answer
    x = 331,650.92

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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.