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Finding the Fourth Proportional to 575,668.20, 862,773.30 and 220,207.80

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Solution

The fourth proportional to 575,668.20, 862,773.30 and 220,207.80 is: 330,032.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,668.20 : 862,773.30 = 220,207.80 : x
  2. Step 2: Convert to fraction form
    575,668.20/862,773.30 = 220,207.80/x
  3. Step 3: Cross multiply
    575,668.20x = 862,773.30 × 220,207.80
  4. Step 4: Simplify right side
    575,668.20x = 189,989,410,291.74
  5. Step 5: Solve for x
    x = 189,989,410,291.74/575,668.20
  6. Step 6: Final answer
    x = 330,032.84

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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.