Home / 278,839.86-384,802.03-151,515.46

Finding the Fourth Proportional to 278,839.86, 384,802.03 and 151,515.46

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Solution

The fourth proportional to 278,839.86, 384,802.03 and 151,515.46 is: 209,092.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,839.86 : 384,802.03 = 151,515.46 : x
  2. Step 2: Convert to fraction form
    278,839.86/384,802.03 = 151,515.46/x
  3. Step 3: Cross multiply
    278,839.86x = 384,802.03 × 151,515.46
  4. Step 4: Simplify right side
    278,839.86x = 58,303,453,902.80
  5. Step 5: Solve for x
    x = 58,303,453,902.80/278,839.86
  6. Step 6: Final answer
    x = 209,092.97

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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.