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Finding the Fourth Proportional to 383,580.10, 575,564.50 and 255,583.88

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Solution

The fourth proportional to 383,580.10, 575,564.50 and 255,583.88 is: 383,505.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,580.10 : 575,564.50 = 255,583.88 : x
  2. Step 2: Convert to fraction form
    383,580.10/575,564.50 = 255,583.88/x
  3. Step 3: Cross multiply
    383,580.10x = 575,564.50 × 255,583.88
  4. Step 4: Simplify right side
    383,580.10x = 147,105,008,100.26
  5. Step 5: Solve for x
    x = 147,105,008,100.26/383,580.10
  6. Step 6: Final answer
    x = 383,505.32

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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.