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Finding the Fourth Proportional to 373,400.20, 560,100.30 and 213,311.80

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Solution

The fourth proportional to 373,400.20, 560,100.30 and 213,311.80 is: 319,967.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,400.20 : 560,100.30 = 213,311.80 : x
  2. Step 2: Convert to fraction form
    373,400.20/560,100.30 = 213,311.80/x
  3. Step 3: Cross multiply
    373,400.20x = 560,100.30 × 213,311.80
  4. Step 4: Simplify right side
    373,400.20x = 119,476,003,173.54
  5. Step 5: Solve for x
    x = 119,476,003,173.54/373,400.20
  6. Step 6: Final answer
    x = 319,967.70

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1.5x scale

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.