Home / 258,101.08-355,355.58-220,223.32

Finding the Fourth Proportional to 258,101.08, 355,355.58 and 220,223.32

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Solution

The fourth proportional to 258,101.08, 355,355.58 and 220,223.32 is: 303,205.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,101.08 : 355,355.58 = 220,223.32 : x
  2. Step 2: Convert to fraction form
    258,101.08/355,355.58 = 220,223.32/x
  3. Step 3: Cross multiply
    258,101.08x = 355,355.58 × 220,223.32
  4. Step 4: Simplify right side
    258,101.08x = 78,257,585,608.13
  5. Step 5: Solve for x
    x = 78,257,585,608.13/258,101.08
  6. Step 6: Final answer
    x = 303,205.18

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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.