Home / 339,769.81-509,657.82-103,112.47

Finding the Fourth Proportional to 339,769.81, 509,657.82 and 103,112.47

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Solution

The fourth proportional to 339,769.81, 509,657.82 and 103,112.47 is: 154,669.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,769.81 : 509,657.82 = 103,112.47 : x
  2. Step 2: Convert to fraction form
    339,769.81/509,657.82 = 103,112.47/x
  3. Step 3: Cross multiply
    339,769.81x = 509,657.82 × 103,112.47
  4. Step 4: Simplify right side
    339,769.81x = 52,552,076,675.02
  5. Step 5: Solve for x
    x = 52,552,076,675.02/339,769.81
  6. Step 6: Final answer
    x = 154,669.65

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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.