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Finding the Third Proportional to 118,246 and 256,585

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Solution

The third proportional to 118,246 and 256,585 is: 556,770.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,246 : 256,585 = 256,585 : x
  2. Step 2: Convert to fraction form
    118,246/256,585 = 256,585/x
  3. Step 3: Cross multiply
    118,246x = 256,585 × 256,585
  4. Step 4: Simplify right side
    118,246x = 65,835,862,225
  5. Step 5: Solve for x
    x = 65,835,862,225/118,246
  6. Step 6: Final answer
    x = 556,770.31

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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.