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Finding the Third Proportional to 153,684 and 314,955

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Solution

The third proportional to 153,684 and 314,955 is: 645,458.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,684 : 314,955 = 314,955 : x
  2. Step 2: Convert to fraction form
    153,684/314,955 = 314,955/x
  3. Step 3: Cross multiply
    153,684x = 314,955 × 314,955
  4. Step 4: Simplify right side
    153,684x = 99,196,652,025
  5. Step 5: Solve for x
    x = 99,196,652,025/153,684
  6. Step 6: Final answer
    x = 645,458.55

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Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.