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Finding the Third Proportional to 255,528 and 555,660

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Solution

The third proportional to 255,528 and 555,660 is: 1,208,313.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,528 : 555,660 = 555,660 : x
  2. Step 2: Convert to fraction form
    255,528/555,660 = 555,660/x
  3. Step 3: Cross multiply
    255,528x = 555,660 × 555,660
  4. Step 4: Simplify right side
    255,528x = 308,758,035,600
  5. Step 5: Solve for x
    x = 308,758,035,600/255,528
  6. Step 6: Final answer
    x = 1,208,313.91

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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.