Home / 217,384.20-326,076.30-122,905.80

Finding the Fourth Proportional to 217,384.20, 326,076.30 and 122,905.80

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Solution

The fourth proportional to 217,384.20, 326,076.30 and 122,905.80 is: 184,358.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,384.20 : 326,076.30 = 122,905.80 : x
  2. Step 2: Convert to fraction form
    217,384.20/326,076.30 = 122,905.80/x
  3. Step 3: Cross multiply
    217,384.20x = 326,076.30 × 122,905.80
  4. Step 4: Simplify right side
    217,384.20x = 40,076,668,512.54
  5. Step 5: Solve for x
    x = 40,076,668,512.54/217,384.20
  6. Step 6: Final answer
    x = 184,358.70

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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.