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Finding the Third Proportional to 210,311.63 and 458,686.88

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Solution

The third proportional to 210,311.63 and 458,686.88 is: 1,000,390.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,311.63 : 458,686.88 = 458,686.88 : x
  2. Step 2: Convert to fraction form
    210,311.63/458,686.88 = 458,686.88/x
  3. Step 3: Cross multiply
    210,311.63x = 458,686.88 × 458,686.88
  4. Step 4: Simplify right side
    210,311.63x = 210,393,649,297.27
  5. Step 5: Solve for x
    x = 210,393,649,297.27/210,311.63
  6. Step 6: Final answer
    x = 1,000,390.01

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.