Home / 276,918.86-382,155.90-154,414.06

Finding the Fourth Proportional to 276,918.86, 382,155.90 and 154,414.06

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Solution

The fourth proportional to 276,918.86, 382,155.90 and 154,414.06 is: 213,095.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,918.86 : 382,155.90 = 154,414.06 : x
  2. Step 2: Convert to fraction form
    276,918.86/382,155.90 = 154,414.06/x
  3. Step 3: Cross multiply
    276,918.86x = 382,155.90 × 154,414.06
  4. Step 4: Simplify right side
    276,918.86x = 59,010,244,071.95
  5. Step 5: Solve for x
    x = 59,010,244,071.95/276,918.86
  6. Step 6: Final answer
    x = 213,095.79

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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.