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Finding the Fourth Proportional to 383,402.66, 529,093.31 and 208,972.67

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Solution

The fourth proportional to 383,402.66, 529,093.31 and 208,972.67 is: 288,381.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,402.66 : 529,093.31 = 208,972.67 : x
  2. Step 2: Convert to fraction form
    383,402.66/529,093.31 = 208,972.67/x
  3. Step 3: Cross multiply
    383,402.66x = 529,093.31 × 208,972.67
  4. Step 4: Simplify right side
    383,402.66x = 110,566,043,515.00
  5. Step 5: Solve for x
    x = 110,566,043,515.00/383,402.66
  6. Step 6: Final answer
    x = 288,381.01

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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.