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Finding the Fourth Proportional to 661,392, 992,088 and 162,756

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Solution

The fourth proportional to 661,392, 992,088 and 162,756 is: 244,134

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,392 : 992,088 = 162,756 : x
  2. Step 2: Convert to fraction form
    661,392/992,088 = 162,756/x
  3. Step 3: Cross multiply
    661,392x = 992,088 × 162,756
  4. Step 4: Simplify right side
    661,392x = 161,468,274,528
  5. Step 5: Solve for x
    x = 161,468,274,528/661,392
  6. Step 6: Final answer
    x = 244,134

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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.