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Finding the Fourth Proportional to 340,450.92, 510,390.48 and 148,181.72

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Solution

The fourth proportional to 340,450.92, 510,390.48 and 148,181.72 is: 222,148.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,450.92 : 510,390.48 = 148,181.72 : x
  2. Step 2: Convert to fraction form
    340,450.92/510,390.48 = 148,181.72/x
  3. Step 3: Cross multiply
    340,450.92x = 510,390.48 × 148,181.72
  4. Step 4: Simplify right side
    340,450.92x = 75,630,539,198.03
  5. Step 5: Solve for x
    x = 75,630,539,198.03/340,450.92
  6. Step 6: Final answer
    x = 222,148.14

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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.