Home / 278,930.84-384,908.27-151,605.32

Finding the Fourth Proportional to 278,930.84, 384,908.27 and 151,605.32

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Solution

The fourth proportional to 278,930.84, 384,908.27 and 151,605.32 is: 209,206.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,930.84 : 384,908.27 = 151,605.32 : x
  2. Step 2: Convert to fraction form
    278,930.84/384,908.27 = 151,605.32/x
  3. Step 3: Cross multiply
    278,930.84x = 384,908.27 × 151,605.32
  4. Step 4: Simplify right side
    278,930.84x = 58,354,138,761.43
  5. Step 5: Solve for x
    x = 58,354,138,761.43/278,930.84
  6. Step 6: Final answer
    x = 209,206.48

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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.