Home / 278,738.56-384,715.24-165,539.44

Finding the Fourth Proportional to 278,738.56, 384,715.24 and 165,539.44

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Solution

The fourth proportional to 278,738.56, 384,715.24 and 165,539.44 is: 228,477.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,738.56 : 384,715.24 = 165,539.44 : x
  2. Step 2: Convert to fraction form
    278,738.56/384,715.24 = 165,539.44/x
  3. Step 3: Cross multiply
    278,738.56x = 384,715.24 × 165,539.44
  4. Step 4: Simplify right side
    278,738.56x = 63,685,545,389.07
  5. Step 5: Solve for x
    x = 63,685,545,389.07/278,738.56
  6. Step 6: Final answer
    x = 228,477.70

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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.