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Finding the Third Proportional to 336,130 and 520,403

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Solution

The third proportional to 336,130 and 520,403 is: 805,698.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,130 : 520,403 = 520,403 : x
  2. Step 2: Convert to fraction form
    336,130/520,403 = 520,403/x
  3. Step 3: Cross multiply
    336,130x = 520,403 × 520,403
  4. Step 4: Simplify right side
    336,130x = 270,819,282,409
  5. Step 5: Solve for x
    x = 270,819,282,409/336,130
  6. Step 6: Final answer
    x = 805,698.04

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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.