Home / 347,799.60-521,699.40-214,246.80

Finding the Fourth Proportional to 347,799.60, 521,699.40 and 214,246.80

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Solution

The fourth proportional to 347,799.60, 521,699.40 and 214,246.80 is: 321,370.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,799.60 : 521,699.40 = 214,246.80 : x
  2. Step 2: Convert to fraction form
    347,799.60/521,699.40 = 214,246.80/x
  3. Step 3: Cross multiply
    347,799.60x = 521,699.40 × 214,246.80
  4. Step 4: Simplify right side
    347,799.60x = 111,772,427,011.92
  5. Step 5: Solve for x
    x = 111,772,427,011.92/347,799.60
  6. Step 6: Final answer
    x = 321,370.20

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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.