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Finding the Fourth Proportional to 365,145.20, 503,850.52 and 203,980.32

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Solution

The fourth proportional to 365,145.20, 503,850.52 and 203,980.32 is: 281,464.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,145.20 : 503,850.52 = 203,980.32 : x
  2. Step 2: Convert to fraction form
    365,145.20/503,850.52 = 203,980.32/x
  3. Step 3: Cross multiply
    365,145.20x = 503,850.52 × 203,980.32
  4. Step 4: Simplify right side
    365,145.20x = 102,775,590,301.77
  5. Step 5: Solve for x
    x = 102,775,590,301.77/365,145.20
  6. Step 6: Final answer
    x = 281,464.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.