Home / 311,351.04-466,981.20-100,958.40

Finding the Fourth Proportional to 311,351.04, 466,981.20 and 100,958.40

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Solution

The fourth proportional to 311,351.04, 466,981.20 and 100,958.40 is: 151,422.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,351.04 : 466,981.20 = 100,958.40 : x
  2. Step 2: Convert to fraction form
    311,351.04/466,981.20 = 100,958.40/x
  3. Step 3: Cross multiply
    311,351.04x = 466,981.20 × 100,958.40
  4. Step 4: Simplify right side
    311,351.04x = 47,145,674,782.08
  5. Step 5: Solve for x
    x = 47,145,674,782.08/311,351.04
  6. Step 6: Final answer
    x = 151,422.89

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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.