Home / 383,140.33-574,758.20-130,401.40

Finding the Fourth Proportional to 383,140.33, 574,758.20 and 130,401.40

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Solution

The fourth proportional to 383,140.33, 574,758.20 and 130,401.40 is: 195,618.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,140.33 : 574,758.20 = 130,401.40 : x
  2. Step 2: Convert to fraction form
    383,140.33/574,758.20 = 130,401.40/x
  3. Step 3: Cross multiply
    383,140.33x = 574,758.20 × 130,401.40
  4. Step 4: Simplify right side
    383,140.33x = 74,949,273,941.48
  5. Step 5: Solve for x
    x = 74,949,273,941.48/383,140.33
  6. Step 6: Final answer
    x = 195,618.34

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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.