Home / 278,852.25-384,812.23-154,669.44

Finding the Fourth Proportional to 278,852.25, 384,812.23 and 154,669.44

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Solution

The fourth proportional to 278,852.25, 384,812.23 and 154,669.44 is: 213,441.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,852.25 : 384,812.23 = 154,669.44 : x
  2. Step 2: Convert to fraction form
    278,852.25/384,812.23 = 154,669.44/x
  3. Step 3: Cross multiply
    278,852.25x = 384,812.23 × 154,669.44
  4. Step 4: Simplify right side
    278,852.25x = 59,518,692,119.25
  5. Step 5: Solve for x
    x = 59,518,692,119.25/278,852.25
  6. Step 6: Final answer
    x = 213,441.68

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1.5x scale

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.