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Finding the Third Proportional to 266,028 and 358,920

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Solution

The third proportional to 266,028 and 358,920 is: 484,248.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,028 : 358,920 = 358,920 : x
  2. Step 2: Convert to fraction form
    266,028/358,920 = 358,920/x
  3. Step 3: Cross multiply
    266,028x = 358,920 × 358,920
  4. Step 4: Simplify right side
    266,028x = 128,823,566,400
  5. Step 5: Solve for x
    x = 128,823,566,400/266,028
  6. Step 6: Final answer
    x = 484,248.15

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.