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Finding the Third Proportional to 358,752 and 555,168

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Solution

The third proportional to 358,752 and 555,168 is: 859,121.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,752 : 555,168 = 555,168 : x
  2. Step 2: Convert to fraction form
    358,752/555,168 = 555,168/x
  3. Step 3: Cross multiply
    358,752x = 555,168 × 555,168
  4. Step 4: Simplify right side
    358,752x = 308,211,508,224
  5. Step 5: Solve for x
    x = 308,211,508,224/358,752
  6. Step 6: Final answer
    x = 859,121.37

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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.