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Finding the Fourth Proportional to 201,892.65, 302,838.98 and 68,923.05

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Solution

The fourth proportional to 201,892.65, 302,838.98 and 68,923.05 is: 103,384.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,892.65 : 302,838.98 = 68,923.05 : x
  2. Step 2: Convert to fraction form
    201,892.65/302,838.98 = 68,923.05/x
  3. Step 3: Cross multiply
    201,892.65x = 302,838.98 × 68,923.05
  4. Step 4: Simplify right side
    201,892.65x = 20,872,585,815.87
  5. Step 5: Solve for x
    x = 20,872,585,815.87/201,892.65
  6. Step 6: Final answer
    x = 103,384.58

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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.