Home / 258,772.48-388,195.16-90,268.22

Finding the Fourth Proportional to 258,772.48, 388,195.16 and 90,268.22

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Solution

The fourth proportional to 258,772.48, 388,195.16 and 90,268.22 is: 135,415.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,772.48 : 388,195.16 = 90,268.22 : x
  2. Step 2: Convert to fraction form
    258,772.48/388,195.16 = 90,268.22/x
  3. Step 3: Cross multiply
    258,772.48x = 388,195.16 × 90,268.22
  4. Step 4: Simplify right side
    258,772.48x = 35,041,686,624.96
  5. Step 5: Solve for x
    x = 35,041,686,624.96/258,772.48
  6. Step 6: Final answer
    x = 135,415.04

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1.5x scale

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.