Home / 394,738.72-592,138.88-142,052.16

Finding the Fourth Proportional to 394,738.72, 592,138.88 and 142,052.16

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Solution

The fourth proportional to 394,738.72, 592,138.88 and 142,052.16 is: 213,089.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,738.72 : 592,138.88 = 142,052.16 : x
  2. Step 2: Convert to fraction form
    394,738.72/592,138.88 = 142,052.16/x
  3. Step 3: Cross multiply
    394,738.72x = 592,138.88 × 142,052.16
  4. Step 4: Simplify right side
    394,738.72x = 84,114,606,923.98
  5. Step 5: Solve for x
    x = 84,114,606,923.98/394,738.72
  6. Step 6: Final answer
    x = 213,089.32

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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.