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Finding the Fourth Proportional to 393,626.08, 590,448.24 and 140,923.84

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Solution

The fourth proportional to 393,626.08, 590,448.24 and 140,923.84 is: 211,389.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,626.08 : 590,448.24 = 140,923.84 : x
  2. Step 2: Convert to fraction form
    393,626.08/590,448.24 = 140,923.84/x
  3. Step 3: Cross multiply
    393,626.08x = 590,448.24 × 140,923.84
  4. Step 4: Simplify right side
    393,626.08x = 83,208,233,302.04
  5. Step 5: Solve for x
    x = 83,208,233,302.04/393,626.08
  6. Step 6: Final answer
    x = 211,389.03

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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.