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Finding the Fourth Proportional to 201,612.45, 302,418.68 and 164,287.65

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Solution

The fourth proportional to 201,612.45, 302,418.68 and 164,287.65 is: 246,431.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,612.45 : 302,418.68 = 164,287.65 : x
  2. Step 2: Convert to fraction form
    201,612.45/302,418.68 = 164,287.65/x
  3. Step 3: Cross multiply
    201,612.45x = 302,418.68 × 164,287.65
  4. Step 4: Simplify right side
    201,612.45x = 49,683,654,253.30
  5. Step 5: Solve for x
    x = 49,683,654,253.30/201,612.45
  6. Step 6: Final answer
    x = 246,431.48

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1.5x scale

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.