Home / 347,519.40-520,890.30-178,974.60

Finding the Fourth Proportional to 347,519.40, 520,890.30 and 178,974.60

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Solution

The fourth proportional to 347,519.40, 520,890.30 and 178,974.60 is: 268,261.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,519.40 : 520,890.30 = 178,974.60 : x
  2. Step 2: Convert to fraction form
    347,519.40/520,890.30 = 178,974.60/x
  3. Step 3: Cross multiply
    347,519.40x = 520,890.30 × 178,974.60
  4. Step 4: Simplify right side
    347,519.40x = 93,226,133,086.38
  5. Step 5: Solve for x
    x = 93,226,133,086.38/347,519.40
  6. Step 6: Final answer
    x = 268,261.67

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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.