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Finding the Third Proportional to 331,120.13 and 509,596.88

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Solution

The third proportional to 331,120.13 and 509,596.88 is: 784,274.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,120.13 : 509,596.88 = 509,596.88 : x
  2. Step 2: Convert to fraction form
    331,120.13/509,596.88 = 509,596.88/x
  3. Step 3: Cross multiply
    331,120.13x = 509,596.88 × 509,596.88
  4. Step 4: Simplify right side
    331,120.13x = 259,688,975,009.77
  5. Step 5: Solve for x
    x = 259,688,975,009.77/331,120.13
  6. Step 6: Final answer
    x = 784,274.21

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.