Home / 221,314.40-331,971.60-193,666.40

Finding the Fourth Proportional to 221,314.40, 331,971.60 and 193,666.40

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Solution

The fourth proportional to 221,314.40, 331,971.60 and 193,666.40 is: 290,499.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,314.40 : 331,971.60 = 193,666.40 : x
  2. Step 2: Convert to fraction form
    221,314.40/331,971.60 = 193,666.40/x
  3. Step 3: Cross multiply
    221,314.40x = 331,971.60 × 193,666.40
  4. Step 4: Simplify right side
    221,314.40x = 64,291,744,674.24
  5. Step 5: Solve for x
    x = 64,291,744,674.24/221,314.40
  6. Step 6: Final answer
    x = 290,499.60

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Similar ratio
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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.