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Finding the Third Proportional to 264,080.50 and 390,296.75

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Solution

The third proportional to 264,080.50 and 390,296.75 is: 576,837.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,080.50 : 390,296.75 = 390,296.75 : x
  2. Step 2: Convert to fraction form
    264,080.50/390,296.75 = 390,296.75/x
  3. Step 3: Cross multiply
    264,080.50x = 390,296.75 × 390,296.75
  4. Step 4: Simplify right side
    264,080.50x = 152,331,553,060.56
  5. Step 5: Solve for x
    x = 152,331,553,060.56/264,080.50
  6. Step 6: Final answer
    x = 576,837.57

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.