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Finding the Fourth Proportional to 407,240.50, 610,948.49 and 122,907.25

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Solution

The fourth proportional to 407,240.50, 610,948.49 and 122,907.25 is: 184,387.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,240.50 : 610,948.49 = 122,907.25 : x
  2. Step 2: Convert to fraction form
    407,240.50/610,948.49 = 122,907.25/x
  3. Step 3: Cross multiply
    407,240.50x = 610,948.49 × 122,907.25
  4. Step 4: Simplify right side
    407,240.50x = 75,089,998,183.02
  5. Step 5: Solve for x
    x = 75,089,998,183.02/407,240.50
  6. Step 6: Final answer
    x = 184,387.35

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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.