Home / 218,109.18-301,220.10-194,334.20

Finding the Fourth Proportional to 218,109.18, 301,220.10 and 194,334.20

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Solution

The fourth proportional to 218,109.18, 301,220.10 and 194,334.20 is: 268,385.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,109.18 : 301,220.10 = 194,334.20 : x
  2. Step 2: Convert to fraction form
    218,109.18/301,220.10 = 194,334.20/x
  3. Step 3: Cross multiply
    218,109.18x = 301,220.10 × 194,334.20
  4. Step 4: Simplify right side
    218,109.18x = 58,537,367,157.42
  5. Step 5: Solve for x
    x = 58,537,367,157.42/218,109.18
  6. Step 6: Final answer
    x = 268,385.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.