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Finding the Third Proportional to 255,354 and 542,988

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Solution

The third proportional to 255,354 and 542,988 is: 1,154,616.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,354 : 542,988 = 542,988 : x
  2. Step 2: Convert to fraction form
    255,354/542,988 = 542,988/x
  3. Step 3: Cross multiply
    255,354x = 542,988 × 542,988
  4. Step 4: Simplify right side
    255,354x = 294,835,968,144
  5. Step 5: Solve for x
    x = 294,835,968,144/255,354
  6. Step 6: Final answer
    x = 1,154,616.60

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.