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Finding the Third Proportional to 338,220 and 535,158

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Solution

The third proportional to 338,220 and 535,158 is: 846,768.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,220 : 535,158 = 535,158 : x
  2. Step 2: Convert to fraction form
    338,220/535,158 = 535,158/x
  3. Step 3: Cross multiply
    338,220x = 535,158 × 535,158
  4. Step 4: Simplify right side
    338,220x = 286,394,084,964
  5. Step 5: Solve for x
    x = 286,394,084,964/338,220
  6. Step 6: Final answer
    x = 846,768.63

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Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.