Home / 278,684.49-384,578.25-151,357.35

Finding the Fourth Proportional to 278,684.49, 384,578.25 and 151,357.35

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Solution

The fourth proportional to 278,684.49, 384,578.25 and 151,357.35 is: 208,869.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,684.49 : 384,578.25 = 151,357.35 : x
  2. Step 2: Convert to fraction form
    278,684.49/384,578.25 = 151,357.35/x
  3. Step 3: Cross multiply
    278,684.49x = 384,578.25 × 151,357.35
  4. Step 4: Simplify right side
    278,684.49x = 58,208,744,787.64
  5. Step 5: Solve for x
    x = 58,208,744,787.64/278,684.49
  6. Step 6: Final answer
    x = 208,869.70

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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.