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Finding the Fourth Proportional to 202.06, 302.70 and 150.40

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Solution

The fourth proportional to 202.06, 302.70 and 150.40 is: 225.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    202.06 : 302.70 = 150.40 : x
  2. Step 2: Convert to fraction form
    202.06/302.70 = 150.40/x
  3. Step 3: Cross multiply
    202.06x = 302.70 × 150.40
  4. Step 4: Simplify right side
    202.06x = 45,526.08
  5. Step 5: Solve for x
    x = 45,526.08/202.06
  6. Step 6: Final answer
    x = 225.31

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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.