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Finding the Fourth Proportional to 340,279.30, 510,418.94 and 103,622

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Solution

The fourth proportional to 340,279.30, 510,418.94 and 103,622 is: 155,433.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,279.30 : 510,418.94 = 103,622 : x
  2. Step 2: Convert to fraction form
    340,279.30/510,418.94 = 103,622/x
  3. Step 3: Cross multiply
    340,279.30x = 510,418.94 × 103,622
  4. Step 4: Simplify right side
    340,279.30x = 52,890,631,400.68
  5. Step 5: Solve for x
    x = 52,890,631,400.68/340,279.30
  6. Step 6: Final answer
    x = 155,433.00

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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.