Home / 204,178.32-306,243.18-54,429.84

Finding the Fourth Proportional to 204,178.32, 306,243.18 and 54,429.84

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Solution

The fourth proportional to 204,178.32, 306,243.18 and 54,429.84 is: 81,638.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,178.32 : 306,243.18 = 54,429.84 : x
  2. Step 2: Convert to fraction form
    204,178.32/306,243.18 = 54,429.84/x
  3. Step 3: Cross multiply
    204,178.32x = 306,243.18 × 54,429.84
  4. Step 4: Simplify right side
    204,178.32x = 16,668,767,288.49
  5. Step 5: Solve for x
    x = 16,668,767,288.49/204,178.32
  6. Step 6: Final answer
    x = 81,638.28

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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.