Home / 383,849.50-529,709.35-211,774.72

Finding the Fourth Proportional to 383,849.50, 529,709.35 and 211,774.72

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Solution

The fourth proportional to 383,849.50, 529,709.35 and 211,774.72 is: 292,247.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,849.50 : 529,709.35 = 211,774.72 : x
  2. Step 2: Convert to fraction form
    383,849.50/529,709.35 = 211,774.72/x
  3. Step 3: Cross multiply
    383,849.50x = 529,709.35 × 211,774.72
  4. Step 4: Simplify right side
    383,849.50x = 112,179,046,827.79
  5. Step 5: Solve for x
    x = 112,179,046,827.79/383,849.50
  6. Step 6: Final answer
    x = 292,247.47

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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.