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Finding the Fourth Proportional to 340,855.88, 510,369.34 and 190,668.44

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Solution

The fourth proportional to 340,855.88, 510,369.34 and 190,668.44 is: 285,491.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,855.88 : 510,369.34 = 190,668.44 : x
  2. Step 2: Convert to fraction form
    340,855.88/510,369.34 = 190,668.44/x
  3. Step 3: Cross multiply
    340,855.88x = 510,369.34 × 190,668.44
  4. Step 4: Simplify right side
    340,855.88x = 97,311,325,881.63
  5. Step 5: Solve for x
    x = 97,311,325,881.63/340,855.88
  6. Step 6: Final answer
    x = 285,491.12

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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.