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Finding the Fourth Proportional to 383,838.40, 529,525.69 and 222,599.98

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Solution

The fourth proportional to 383,838.40, 529,525.69 and 222,599.98 is: 307,088.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,838.40 : 529,525.69 = 222,599.98 : x
  2. Step 2: Convert to fraction form
    383,838.40/529,525.69 = 222,599.98/x
  3. Step 3: Cross multiply
    383,838.40x = 529,525.69 × 222,599.98
  4. Step 4: Simplify right side
    383,838.40x = 117,872,408,003.49
  5. Step 5: Solve for x
    x = 117,872,408,003.49/383,838.40
  6. Step 6: Final answer
    x = 307,088.63

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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.