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Finding the Fourth Proportional to 398,529.40, 597,954.30 and 161,890.60

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Solution

The fourth proportional to 398,529.40, 597,954.30 and 161,890.60 is: 242,900.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,529.40 : 597,954.30 = 161,890.60 : x
  2. Step 2: Convert to fraction form
    398,529.40/597,954.30 = 161,890.60/x
  3. Step 3: Cross multiply
    398,529.40x = 597,954.30 × 161,890.60
  4. Step 4: Simplify right side
    398,529.40x = 96,803,180,399.58
  5. Step 5: Solve for x
    x = 96,803,180,399.58/398,529.40
  6. Step 6: Final answer
    x = 242,900.98

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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.