Home / 278,895.36-384,860.83-158,038.09

Finding the Fourth Proportional to 278,895.36, 384,860.83 and 158,038.09

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Solution

The fourth proportional to 278,895.36, 384,860.83 and 158,038.09 is: 218,084.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,895.36 : 384,860.83 = 158,038.09 : x
  2. Step 2: Convert to fraction form
    278,895.36/384,860.83 = 158,038.09/x
  3. Step 3: Cross multiply
    278,895.36x = 384,860.83 × 158,038.09
  4. Step 4: Simplify right side
    278,895.36x = 60,822,670,489.01
  5. Step 5: Solve for x
    x = 60,822,670,489.01/278,895.36
  6. Step 6: Final answer
    x = 218,084.20

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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.