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Finding the Fourth Proportional to 339,840.15, 509,727.25 and 103,184.88

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Solution

The fourth proportional to 339,840.15, 509,727.25 and 103,184.88 is: 154,767.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,840.15 : 509,727.25 = 103,184.88 : x
  2. Step 2: Convert to fraction form
    339,840.15/509,727.25 = 103,184.88/x
  3. Step 3: Cross multiply
    339,840.15x = 509,727.25 × 103,184.88
  4. Step 4: Simplify right side
    339,840.15x = 52,596,145,123.98
  5. Step 5: Solve for x
    x = 52,596,145,123.98/339,840.15
  6. Step 6: Final answer
    x = 154,767.31

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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.