Home / 276,922.90-382,171.62-154,429.12

Finding the Fourth Proportional to 276,922.90, 382,171.62 and 154,429.12

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Solution

The fourth proportional to 276,922.90, 382,171.62 and 154,429.12 is: 213,122.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,922.90 : 382,171.62 = 154,429.12 : x
  2. Step 2: Convert to fraction form
    276,922.90/382,171.62 = 154,429.12/x
  3. Step 3: Cross multiply
    276,922.90x = 382,171.62 × 154,429.12
  4. Step 4: Simplify right side
    276,922.90x = 59,018,426,965.57
  5. Step 5: Solve for x
    x = 59,018,426,965.57/276,922.90
  6. Step 6: Final answer
    x = 213,122.23

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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.