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Finding the Fourth Proportional to 349,891.36, 482,916 and 219,129.64

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Solution

The fourth proportional to 349,891.36, 482,916 and 219,129.64 is: 302,440.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,891.36 : 482,916 = 219,129.64 : x
  2. Step 2: Convert to fraction form
    349,891.36/482,916 = 219,129.64/x
  3. Step 3: Cross multiply
    349,891.36x = 482,916 × 219,129.64
  4. Step 4: Simplify right side
    349,891.36x = 105,821,209,230.24
  5. Step 5: Solve for x
    x = 105,821,209,230.24/349,891.36
  6. Step 6: Final answer
    x = 302,440.19

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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.