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Finding the Third Proportional to 255,706 and 556,028

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Solution

The third proportional to 255,706 and 556,028 is: 1,209,072.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,706 : 556,028 = 556,028 : x
  2. Step 2: Convert to fraction form
    255,706/556,028 = 556,028/x
  3. Step 3: Cross multiply
    255,706x = 556,028 × 556,028
  4. Step 4: Simplify right side
    255,706x = 309,167,136,784
  5. Step 5: Solve for x
    x = 309,167,136,784/255,706
  6. Step 6: Final answer
    x = 1,209,072.67

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.