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Finding the Fourth Proportional to 328,318.01, 492,492.09 and 100,597.31

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Solution

The fourth proportional to 328,318.01, 492,492.09 and 100,597.31 is: 150,900.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,318.01 : 492,492.09 = 100,597.31 : x
  2. Step 2: Convert to fraction form
    328,318.01/492,492.09 = 100,597.31/x
  3. Step 3: Cross multiply
    328,318.01x = 492,492.09 × 100,597.31
  4. Step 4: Simplify right side
    328,318.01x = 49,543,379,450.28
  5. Step 5: Solve for x
    x = 49,543,379,450.28/328,318.01
  6. Step 6: Final answer
    x = 150,900.58

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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.