Home / 285,727.36-394,320.96-158,408.32

Finding the Fourth Proportional to 285,727.36, 394,320.96 and 158,408.32

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Solution

The fourth proportional to 285,727.36, 394,320.96 and 158,408.32 is: 218,613.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,727.36 : 394,320.96 = 158,408.32 : x
  2. Step 2: Convert to fraction form
    285,727.36/394,320.96 = 158,408.32/x
  3. Step 3: Cross multiply
    285,727.36x = 394,320.96 × 158,408.32
  4. Step 4: Simplify right side
    285,727.36x = 62,463,720,814.39
  5. Step 5: Solve for x
    x = 62,463,720,814.39/285,727.36
  6. Step 6: Final answer
    x = 218,613.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.