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Finding the Fourth Proportional to 302.34, 453.25 and 117.18

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Solution

The fourth proportional to 302.34, 453.25 and 117.18 is: 175.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    302.34 : 453.25 = 117.18 : x
  2. Step 2: Convert to fraction form
    302.34/453.25 = 117.18/x
  3. Step 3: Cross multiply
    302.34x = 453.25 × 117.18
  4. Step 4: Simplify right side
    302.34x = 53,111.84
  5. Step 5: Solve for x
    x = 53,111.84/302.34
  6. Step 6: Final answer
    x = 175.67

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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.