Home / 276,515.09-414,772.40-76,835.38

Finding the Fourth Proportional to 276,515.09, 414,772.40 and 76,835.38

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Solution

The fourth proportional to 276,515.09, 414,772.40 and 76,835.38 is: 115,253.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,515.09 : 414,772.40 = 76,835.38 : x
  2. Step 2: Convert to fraction form
    276,515.09/414,772.40 = 76,835.38/x
  3. Step 3: Cross multiply
    276,515.09x = 414,772.40 × 76,835.38
  4. Step 4: Simplify right side
    276,515.09x = 31,869,194,967.51
  5. Step 5: Solve for x
    x = 31,869,194,967.51/276,515.09
  6. Step 6: Final answer
    x = 115,253.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.