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Finding the Fourth Proportional to 405,211.60, 606,942.60 and 335,227.60

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Solution

The fourth proportional to 405,211.60, 606,942.60 and 335,227.60 is: 502,117.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,211.60 : 606,942.60 = 335,227.60 : x
  2. Step 2: Convert to fraction form
    405,211.60/606,942.60 = 335,227.60/x
  3. Step 3: Cross multiply
    405,211.60x = 606,942.60 × 335,227.60
  4. Step 4: Simplify right side
    405,211.60x = 203,463,911,135.76
  5. Step 5: Solve for x
    x = 203,463,911,135.76/405,211.60
  6. Step 6: Final answer
    x = 502,117.69

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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.