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Finding the Fourth Proportional to 383,528.19, 575,375.32 and 146,870.88

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Solution

The fourth proportional to 383,528.19, 575,375.32 and 146,870.88 is: 220,338.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,528.19 : 575,375.32 = 146,870.88 : x
  2. Step 2: Convert to fraction form
    383,528.19/575,375.32 = 146,870.88/x
  3. Step 3: Cross multiply
    383,528.19x = 575,375.32 × 146,870.88
  4. Step 4: Simplify right side
    383,528.19x = 84,505,879,578.68
  5. Step 5: Solve for x
    x = 84,505,879,578.68/383,528.19
  6. Step 6: Final answer
    x = 220,338.12

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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.