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Finding the Fourth Proportional to 381.02, 526.01 and 302.22

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Solution

The fourth proportional to 381.02, 526.01 and 302.22 is: 417.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    381.02 : 526.01 = 302.22 : x
  2. Step 2: Convert to fraction form
    381.02/526.01 = 302.22/x
  3. Step 3: Cross multiply
    381.02x = 526.01 × 302.22
  4. Step 4: Simplify right side
    381.02x = 158,969.23
  5. Step 5: Solve for x
    x = 158,969.23/381.02
  6. Step 6: Final answer
    x = 417.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.