Home / 258,100.08-355,354.20-220,222.32

Finding the Fourth Proportional to 258,100.08, 355,354.20 and 220,222.32

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Solution

The fourth proportional to 258,100.08, 355,354.20 and 220,222.32 is: 303,203.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,100.08 : 355,354.20 = 220,222.32 : x
  2. Step 2: Convert to fraction form
    258,100.08/355,354.20 = 220,222.32/x
  3. Step 3: Cross multiply
    258,100.08x = 355,354.20 × 220,222.32
  4. Step 4: Simplify right side
    258,100.08x = 78,256,926,345.74
  5. Step 5: Solve for x
    x = 78,256,926,345.74/258,100.08
  6. Step 6: Final answer
    x = 303,203.81

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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.