Home / 278,912.09-384,898.73-151,587.69

Finding the Fourth Proportional to 278,912.09, 384,898.73 and 151,587.69

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Solution

The fourth proportional to 278,912.09, 384,898.73 and 151,587.69 is: 209,191.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,912.09 : 384,898.73 = 151,587.69 : x
  2. Step 2: Convert to fraction form
    278,912.09/384,898.73 = 151,587.69/x
  3. Step 3: Cross multiply
    278,912.09x = 384,898.73 × 151,587.69
  4. Step 4: Simplify right side
    278,912.09x = 58,345,908,606.70
  5. Step 5: Solve for x
    x = 58,345,908,606.70/278,912.09
  6. Step 6: Final answer
    x = 209,191.04

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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.