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Finding the Third Proportional to 288,090 and 382,284

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Solution

The third proportional to 288,090 and 382,284 is: 507,275.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,090 : 382,284 = 382,284 : x
  2. Step 2: Convert to fraction form
    288,090/382,284 = 382,284/x
  3. Step 3: Cross multiply
    288,090x = 382,284 × 382,284
  4. Step 4: Simplify right side
    288,090x = 146,141,056,656
  5. Step 5: Solve for x
    x = 146,141,056,656/288,090
  6. Step 6: Final answer
    x = 507,275.70

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.