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Finding the Third Proportional to 368,988 and 553,489

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Solution

The third proportional to 368,988 and 553,489 is: 830,244.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,988 : 553,489 = 553,489 : x
  2. Step 2: Convert to fraction form
    368,988/553,489 = 553,489/x
  3. Step 3: Cross multiply
    368,988x = 553,489 × 553,489
  4. Step 4: Simplify right side
    368,988x = 306,350,073,121
  5. Step 5: Solve for x
    x = 306,350,073,121/368,988
  6. Step 6: Final answer
    x = 830,244.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.