Home / 278,830.35-384,787.26-164,113.29

Finding the Fourth Proportional to 278,830.35, 384,787.26 and 164,113.29

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Solution

The fourth proportional to 278,830.35, 384,787.26 and 164,113.29 is: 226,477.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,830.35 : 384,787.26 = 164,113.29 : x
  2. Step 2: Convert to fraction form
    278,830.35/384,787.26 = 164,113.29/x
  3. Step 3: Cross multiply
    278,830.35x = 384,787.26 × 164,113.29
  4. Step 4: Simplify right side
    278,830.35x = 63,148,703,188.69
  5. Step 5: Solve for x
    x = 63,148,703,188.69/278,830.35
  6. Step 6: Final answer
    x = 226,477.15

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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.