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Finding the Fourth Proportional to 395,305.56, 545,522.63 and 214,019.46

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Solution

The fourth proportional to 395,305.56, 545,522.63 and 214,019.46 is: 295,347.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,305.56 : 545,522.63 = 214,019.46 : x
  2. Step 2: Convert to fraction form
    395,305.56/545,522.63 = 214,019.46/x
  3. Step 3: Cross multiply
    395,305.56x = 545,522.63 × 214,019.46
  4. Step 4: Simplify right side
    395,305.56x = 116,752,457,620.28
  5. Step 5: Solve for x
    x = 116,752,457,620.28/395,305.56
  6. Step 6: Final answer
    x = 295,347.37

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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.