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Finding the Fourth Proportional to 339,437.52, 509,158.98 and 102,798.72

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Solution

The fourth proportional to 339,437.52, 509,158.98 and 102,798.72 is: 154,198.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,437.52 : 509,158.98 = 102,798.72 : x
  2. Step 2: Convert to fraction form
    339,437.52/509,158.98 = 102,798.72/x
  3. Step 3: Cross multiply
    339,437.52x = 509,158.98 × 102,798.72
  4. Step 4: Simplify right side
    339,437.52x = 52,340,891,420.51
  5. Step 5: Solve for x
    x = 52,340,891,420.51/339,437.52
  6. Step 6: Final answer
    x = 154,198.90

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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.