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Finding the Fourth Proportional to 339,549.76, 509,185.92 and 147,436.48

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Solution

The fourth proportional to 339,549.76, 509,185.92 and 147,436.48 is: 221,094.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,549.76 : 509,185.92 = 147,436.48 : x
  2. Step 2: Convert to fraction form
    339,549.76/509,185.92 = 147,436.48/x
  3. Step 3: Cross multiply
    339,549.76x = 509,185.92 × 147,436.48
  4. Step 4: Simplify right side
    339,549.76x = 75,072,579,710.36
  5. Step 5: Solve for x
    x = 75,072,579,710.36/339,549.76
  6. Step 6: Final answer
    x = 221,094.49

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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.