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Finding the Third Proportional to 306,036.75 and 459,055.50

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Solution

The third proportional to 306,036.75 and 459,055.50 is: 688,583.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,036.75 : 459,055.50 = 459,055.50 : x
  2. Step 2: Convert to fraction form
    306,036.75/459,055.50 = 459,055.50/x
  3. Step 3: Cross multiply
    306,036.75x = 459,055.50 × 459,055.50
  4. Step 4: Simplify right side
    306,036.75x = 210,731,952,080.25
  5. Step 5: Solve for x
    x = 210,731,952,080.25/306,036.75
  6. Step 6: Final answer
    x = 688,583.81

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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.