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Finding the Fourth Proportional to 383,857.85, 575,875.38 and 113,979.98

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Solution

The fourth proportional to 383,857.85, 575,875.38 and 113,979.98 is: 170,996.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,857.85 : 575,875.38 = 113,979.98 : x
  2. Step 2: Convert to fraction form
    383,857.85/575,875.38 = 113,979.98/x
  3. Step 3: Cross multiply
    383,857.85x = 575,875.38 × 113,979.98
  4. Step 4: Simplify right side
    383,857.85x = 65,638,266,162.01
  5. Step 5: Solve for x
    x = 65,638,266,162.01/383,857.85
  6. Step 6: Final answer
    x = 170,996.28

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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.