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Finding the Fourth Proportional to 339,520.95, 509,334.26 and 102,807.27

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Solution

The fourth proportional to 339,520.95, 509,334.26 and 102,807.27 is: 154,226.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,520.95 : 509,334.26 = 102,807.27 : x
  2. Step 2: Convert to fraction form
    339,520.95/509,334.26 = 102,807.27/x
  3. Step 3: Cross multiply
    339,520.95x = 509,334.26 × 102,807.27
  4. Step 4: Simplify right side
    339,520.95x = 52,363,264,274.03
  5. Step 5: Solve for x
    x = 52,363,264,274.03/339,520.95
  6. Step 6: Final answer
    x = 154,226.90

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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.