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Finding the Fourth Proportional to 285,850.72, 394,464.06 and 158,538.16

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Solution

The fourth proportional to 285,850.72, 394,464.06 and 158,538.16 is: 218,777.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,850.72 : 394,464.06 = 158,538.16 : x
  2. Step 2: Convert to fraction form
    285,850.72/394,464.06 = 158,538.16/x
  3. Step 3: Cross multiply
    285,850.72x = 394,464.06 × 158,538.16
  4. Step 4: Simplify right side
    285,850.72x = 62,537,606,258.53
  5. Step 5: Solve for x
    x = 62,537,606,258.53/285,850.72
  6. Step 6: Final answer
    x = 218,777.15

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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.