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Finding the Fourth Proportional to 357,448.75, 536,399.11 and 199,780.63

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Solution

The fourth proportional to 357,448.75, 536,399.11 and 199,780.63 is: 299,797.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,448.75 : 536,399.11 = 199,780.63 : x
  2. Step 2: Convert to fraction form
    357,448.75/536,399.11 = 199,780.63/x
  3. Step 3: Cross multiply
    357,448.75x = 536,399.11 × 199,780.63
  4. Step 4: Simplify right side
    357,448.75x = 107,162,151,035.97
  5. Step 5: Solve for x
    x = 107,162,151,035.97/357,448.75
  6. Step 6: Final answer
    x = 299,797.25

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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.