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Finding the Fourth Proportional to 340,251.08, 510,033.52 and 213,981.54

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Solution

The fourth proportional to 340,251.08, 510,033.52 and 213,981.54 is: 320,756.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,251.08 : 510,033.52 = 213,981.54 : x
  2. Step 2: Convert to fraction form
    340,251.08/510,033.52 = 213,981.54/x
  3. Step 3: Cross multiply
    340,251.08x = 510,033.52 × 213,981.54
  4. Step 4: Simplify right side
    340,251.08x = 109,137,757,526.27
  5. Step 5: Solve for x
    x = 109,137,757,526.27/340,251.08
  6. Step 6: Final answer
    x = 320,756.54

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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.