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Finding the Fourth Proportional to 666,585.64, 999,982.34 and 217,202.10

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Solution

The fourth proportional to 666,585.64, 999,982.34 and 217,202.10 is: 325,837.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,585.64 : 999,982.34 = 217,202.10 : x
  2. Step 2: Convert to fraction form
    666,585.64/999,982.34 = 217,202.10/x
  3. Step 3: Cross multiply
    666,585.64x = 999,982.34 × 217,202.10
  4. Step 4: Simplify right side
    666,585.64x = 217,198,264,210.91
  5. Step 5: Solve for x
    x = 217,198,264,210.91/666,585.64
  6. Step 6: Final answer
    x = 325,837.00

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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.