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Finding the Third Proportional to 207,300 and 429,360

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Solution

The third proportional to 207,300 and 429,360 is: 889,290.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,300 : 429,360 = 429,360 : x
  2. Step 2: Convert to fraction form
    207,300/429,360 = 429,360/x
  3. Step 3: Cross multiply
    207,300x = 429,360 × 429,360
  4. Step 4: Simplify right side
    207,300x = 184,350,009,600
  5. Step 5: Solve for x
    x = 184,350,009,600/207,300
  6. Step 6: Final answer
    x = 889,290.93

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Why These Related Problems?

These problems maintain the same ratio (2.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.