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Finding the Third Proportional to 128,594 and 199,095

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Solution

The third proportional to 128,594 and 199,095 is: 308,247.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,594 : 199,095 = 199,095 : x
  2. Step 2: Convert to fraction form
    128,594/199,095 = 199,095/x
  3. Step 3: Cross multiply
    128,594x = 199,095 × 199,095
  4. Step 4: Simplify right side
    128,594x = 39,638,819,025
  5. Step 5: Solve for x
    x = 39,638,819,025/128,594
  6. Step 6: Final answer
    x = 308,247.81

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.