Home / 347,278.20-520,098.10-214,567.80

Finding the Fourth Proportional to 347,278.20, 520,098.10 and 214,567.80

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Solution

The fourth proportional to 347,278.20, 520,098.10 and 214,567.80 is: 321,345.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,278.20 : 520,098.10 = 214,567.80 : x
  2. Step 2: Convert to fraction form
    347,278.20/520,098.10 = 214,567.80/x
  3. Step 3: Cross multiply
    347,278.20x = 520,098.10 × 214,567.80
  4. Step 4: Simplify right side
    347,278.20x = 111,596,305,101.18
  5. Step 5: Solve for x
    x = 111,596,305,101.18/347,278.20
  6. Step 6: Final answer
    x = 321,345.55

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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.