Home / 287,074.56-394,844.16-230,361.60

Finding the Fourth Proportional to 287,074.56, 394,844.16 and 230,361.60

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Solution

The fourth proportional to 287,074.56, 394,844.16 and 230,361.60 is: 316,840.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,074.56 : 394,844.16 = 230,361.60 : x
  2. Step 2: Convert to fraction form
    287,074.56/394,844.16 = 230,361.60/x
  3. Step 3: Cross multiply
    287,074.56x = 394,844.16 × 230,361.60
  4. Step 4: Simplify right side
    287,074.56x = 90,956,932,448.26
  5. Step 5: Solve for x
    x = 90,956,932,448.26/287,074.56
  6. Step 6: Final answer
    x = 316,840.80

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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.