Home / 278,936.69-384,924.53-158,089.14

Finding the Fourth Proportional to 278,936.69, 384,924.53 and 158,089.14

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Solution

The fourth proportional to 278,936.69, 384,924.53 and 158,089.14 is: 218,158.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,936.69 : 384,924.53 = 158,089.14 : x
  2. Step 2: Convert to fraction form
    278,936.69/384,924.53 = 158,089.14/x
  3. Step 3: Cross multiply
    278,936.69x = 384,924.53 × 158,089.14
  4. Step 4: Simplify right side
    278,936.69x = 60,852,388,307.83
  5. Step 5: Solve for x
    x = 60,852,388,307.83/278,936.69
  6. Step 6: Final answer
    x = 218,158.43

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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.