Home / 347,779.60-521,669.40-214,226.80

Finding the Fourth Proportional to 347,779.60, 521,669.40 and 214,226.80

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Solution

The fourth proportional to 347,779.60, 521,669.40 and 214,226.80 is: 321,340.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,779.60 : 521,669.40 = 214,226.80 : x
  2. Step 2: Convert to fraction form
    347,779.60/521,669.40 = 214,226.80/x
  3. Step 3: Cross multiply
    347,779.60x = 521,669.40 × 214,226.80
  4. Step 4: Simplify right side
    347,779.60x = 111,755,566,219.92
  5. Step 5: Solve for x
    x = 111,755,566,219.92/347,779.60
  6. Step 6: Final answer
    x = 321,340.20

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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.