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Finding the Fourth Proportional to 666,908.07, 1,000,364.67 and 161,468.21

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Solution

The fourth proportional to 666,908.07, 1,000,364.67 and 161,468.21 is: 242,202.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,908.07 : 1,000,364.67 = 161,468.21 : x
  2. Step 2: Convert to fraction form
    666,908.07/1,000,364.67 = 161,468.21/x
  3. Step 3: Cross multiply
    666,908.07x = 1,000,364.67 × 161,468.21
  4. Step 4: Simplify right side
    666,908.07x = 161,527,087,610.32
  5. Step 5: Solve for x
    x = 161,527,087,610.32/666,908.07
  6. Step 6: Final answer
    x = 242,202.93

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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.