Home / 383,399.48-529,084.20-208,971.19

Finding the Fourth Proportional to 383,399.48, 529,084.20 and 208,971.19

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Solution

The fourth proportional to 383,399.48, 529,084.20 and 208,971.19 is: 288,376.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,399.48 : 529,084.20 = 208,971.19 : x
  2. Step 2: Convert to fraction form
    383,399.48/529,084.20 = 208,971.19/x
  3. Step 3: Cross multiply
    383,399.48x = 529,084.20 × 208,971.19
  4. Step 4: Simplify right side
    383,399.48x = 110,563,356,329.20
  5. Step 5: Solve for x
    x = 110,563,356,329.20/383,399.48
  6. Step 6: Final answer
    x = 288,376.39

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.