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Finding the Fourth Proportional to 395,527.60, 545,828.19 and 214,238.97

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Solution

The fourth proportional to 395,527.60, 545,828.19 and 214,238.97 is: 295,649.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,527.60 : 545,828.19 = 214,238.97 : x
  2. Step 2: Convert to fraction form
    395,527.60/545,828.19 = 214,238.97/x
  3. Step 3: Cross multiply
    395,527.60x = 545,828.19 × 214,238.97
  4. Step 4: Simplify right side
    395,527.60x = 116,937,667,979.11
  5. Step 5: Solve for x
    x = 116,937,667,979.11/395,527.60
  6. Step 6: Final answer
    x = 295,649.83

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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.