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Finding the Fourth Proportional to 366,920.35, 550,435.20 and 130,243.21

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Solution

The fourth proportional to 366,920.35, 550,435.20 and 130,243.21 is: 195,384.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,920.35 : 550,435.20 = 130,243.21 : x
  2. Step 2: Convert to fraction form
    366,920.35/550,435.20 = 130,243.21/x
  3. Step 3: Cross multiply
    366,920.35x = 550,435.20 × 130,243.21
  4. Step 4: Simplify right side
    366,920.35x = 71,690,447,344.99
  5. Step 5: Solve for x
    x = 71,690,447,344.99/366,920.35
  6. Step 6: Final answer
    x = 195,384.22

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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.