Home / 278,936.56-384,924.36-158,089.02

Finding the Fourth Proportional to 278,936.56, 384,924.36 and 158,089.02

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Solution

The fourth proportional to 278,936.56, 384,924.36 and 158,089.02 is: 218,158.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,936.56 : 384,924.36 = 158,089.02 : x
  2. Step 2: Convert to fraction form
    278,936.56/384,924.36 = 158,089.02/x
  3. Step 3: Cross multiply
    278,936.56x = 384,924.36 × 158,089.02
  4. Step 4: Simplify right side
    278,936.56x = 60,852,314,846.53
  5. Step 5: Solve for x
    x = 60,852,314,846.53/278,936.56
  6. Step 6: Final answer
    x = 218,158.26

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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.