Home / 278,638.38-384,521.04-151,313.94

Finding the Fourth Proportional to 278,638.38, 384,521.04 and 151,313.94

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Solution

The fourth proportional to 278,638.38, 384,521.04 and 151,313.94 is: 208,813.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,638.38 : 384,521.04 = 151,313.94 : x
  2. Step 2: Convert to fraction form
    278,638.38/384,521.04 = 151,313.94/x
  3. Step 3: Cross multiply
    278,638.38x = 384,521.04 × 151,313.94
  4. Step 4: Simplify right side
    278,638.38x = 58,183,393,575.30
  5. Step 5: Solve for x
    x = 58,183,393,575.30/278,638.38
  6. Step 6: Final answer
    x = 208,813.28

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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.