Home / 276,815.12-382,004.87-149,490.72

Finding the Fourth Proportional to 276,815.12, 382,004.87 and 149,490.72

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Solution

The fourth proportional to 276,815.12, 382,004.87 and 149,490.72 is: 206,297.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,815.12 : 382,004.87 = 149,490.72 : x
  2. Step 2: Convert to fraction form
    276,815.12/382,004.87 = 149,490.72/x
  3. Step 3: Cross multiply
    276,815.12x = 382,004.87 × 149,490.72
  4. Step 4: Simplify right side
    276,815.12x = 57,106,182,312.35
  5. Step 5: Solve for x
    x = 57,106,182,312.35/276,815.12
  6. Step 6: Final answer
    x = 206,297.20

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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.