Home / 383,139.08-574,756.33-130,400.15

Finding the Fourth Proportional to 383,139.08, 574,756.33 and 130,400.15

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Solution

The fourth proportional to 383,139.08, 574,756.33 and 130,400.15 is: 195,616.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,139.08 : 574,756.33 = 130,400.15 : x
  2. Step 2: Convert to fraction form
    383,139.08/574,756.33 = 130,400.15/x
  3. Step 3: Cross multiply
    383,139.08x = 574,756.33 × 130,400.15
  4. Step 4: Simplify right side
    383,139.08x = 74,948,308,445.67
  5. Step 5: Solve for x
    x = 74,948,308,445.67/383,139.08
  6. Step 6: Final answer
    x = 195,616.46

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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.