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Finding the Fourth Proportional to 505,552.89, 758,344.86 and 221,097.09

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Solution

The fourth proportional to 505,552.89, 758,344.86 and 221,097.09 is: 331,652.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,552.89 : 758,344.86 = 221,097.09 : x
  2. Step 2: Convert to fraction form
    505,552.89/758,344.86 = 221,097.09/x
  3. Step 3: Cross multiply
    505,552.89x = 758,344.86 × 221,097.09
  4. Step 4: Simplify right side
    505,552.89x = 167,667,841,762.46
  5. Step 5: Solve for x
    x = 167,667,841,762.46/505,552.89
  6. Step 6: Final answer
    x = 331,652.42

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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.