Home / 203,230.90-280,458.66-111,350.58

Finding the Fourth Proportional to 203,230.90, 280,458.66 and 111,350.58

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Solution

The fourth proportional to 203,230.90, 280,458.66 and 111,350.58 is: 153,663.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,230.90 : 280,458.66 = 111,350.58 : x
  2. Step 2: Convert to fraction form
    203,230.90/280,458.66 = 111,350.58/x
  3. Step 3: Cross multiply
    203,230.90x = 280,458.66 × 111,350.58
  4. Step 4: Simplify right side
    203,230.90x = 31,229,234,457.02
  5. Step 5: Solve for x
    x = 31,229,234,457.02/203,230.90
  6. Step 6: Final answer
    x = 153,663.81

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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.