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Finding the Fourth Proportional to 419,948.37, 630,183.87 and 170,630.37

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Solution

The fourth proportional to 419,948.37, 630,183.87 and 170,630.37 is: 256,051.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,948.37 : 630,183.87 = 170,630.37 : x
  2. Step 2: Convert to fraction form
    419,948.37/630,183.87 = 170,630.37/x
  3. Step 3: Cross multiply
    419,948.37x = 630,183.87 × 170,630.37
  4. Step 4: Simplify right side
    419,948.37x = 107,528,506,906.13
  5. Step 5: Solve for x
    x = 107,528,506,906.13/419,948.37
  6. Step 6: Final answer
    x = 256,051.73

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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.