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Finding the Fourth Proportional to 395,481.67, 545,762.01 and 214,189.63

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Solution

The fourth proportional to 395,481.67, 545,762.01 and 214,189.63 is: 295,580.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,481.67 : 545,762.01 = 214,189.63 : x
  2. Step 2: Convert to fraction form
    395,481.67/545,762.01 = 214,189.63/x
  3. Step 3: Cross multiply
    395,481.67x = 545,762.01 × 214,189.63
  4. Step 4: Simplify right side
    395,481.67x = 116,896,562,989.96
  5. Step 5: Solve for x
    x = 116,896,562,989.96/395,481.67
  6. Step 6: Final answer
    x = 295,580.23

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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.