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Finding the Fourth Proportional to 164.03, 245.65 and 140.00

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Solution

The fourth proportional to 164.03, 245.65 and 140.00 is: 209.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    164.03 : 245.65 = 140.00 : x
  2. Step 2: Convert to fraction form
    164.03/245.65 = 140.00/x
  3. Step 3: Cross multiply
    164.03x = 245.65 × 140.00
  4. Step 4: Simplify right side
    164.03x = 34,390.91
  5. Step 5: Solve for x
    x = 34,390.91/164.03
  6. Step 6: Final answer
    x = 209.67

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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.