Home / 221,864.51-331,808.56-197,065.55

Finding the Fourth Proportional to 221,864.51, 331,808.56 and 197,065.55

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Solution

The fourth proportional to 221,864.51, 331,808.56 and 197,065.55 is: 294,720.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,864.51 : 331,808.56 = 197,065.55 : x
  2. Step 2: Convert to fraction form
    221,864.51/331,808.56 = 197,065.55/x
  3. Step 3: Cross multiply
    221,864.51x = 331,808.56 × 197,065.55
  4. Step 4: Simplify right side
    221,864.51x = 65,388,034,219.40
  5. Step 5: Solve for x
    x = 65,388,034,219.40/221,864.51
  6. Step 6: Final answer
    x = 294,720.57

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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.