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Finding the Fourth Proportional to 383,578.10, 575,561.50 and 255,581.88

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Solution

The fourth proportional to 383,578.10, 575,561.50 and 255,581.88 is: 383,502.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,578.10 : 575,561.50 = 255,581.88 : x
  2. Step 2: Convert to fraction form
    383,578.10/575,561.50 = 255,581.88/x
  3. Step 3: Cross multiply
    383,578.10x = 575,561.50 × 255,581.88
  4. Step 4: Simplify right side
    383,578.10x = 147,103,090,225.62
  5. Step 5: Solve for x
    x = 147,103,090,225.62/383,578.10
  6. Step 6: Final answer
    x = 383,502.32

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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.