Home / 347,815.60-521,723.40-214,262.80

Finding the Fourth Proportional to 347,815.60, 521,723.40 and 214,262.80

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Solution

The fourth proportional to 347,815.60, 521,723.40 and 214,262.80 is: 321,394.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,815.60 : 521,723.40 = 214,262.80 : x
  2. Step 2: Convert to fraction form
    347,815.60/521,723.40 = 214,262.80/x
  3. Step 3: Cross multiply
    347,815.60x = 521,723.40 × 214,262.80
  4. Step 4: Simplify right side
    347,815.60x = 111,785,916,509.52
  5. Step 5: Solve for x
    x = 111,785,916,509.52/347,815.60
  6. Step 6: Final answer
    x = 321,394.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.