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Finding the Third Proportional to 255,672 and 558,000

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Solution

The third proportional to 255,672 and 558,000 is: 1,217,825.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,672 : 558,000 = 558,000 : x
  2. Step 2: Convert to fraction form
    255,672/558,000 = 558,000/x
  3. Step 3: Cross multiply
    255,672x = 558,000 × 558,000
  4. Step 4: Simplify right side
    255,672x = 311,364,000,000
  5. Step 5: Solve for x
    x = 311,364,000,000/255,672
  6. Step 6: Final answer
    x = 1,217,825.96

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.