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Finding the Fourth Proportional to 369.72, 554.94 and 302.07

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Solution

The fourth proportional to 369.72, 554.94 and 302.07 is: 453.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    369.72 : 554.94 = 302.07 : x
  2. Step 2: Convert to fraction form
    369.72/554.94 = 302.07/x
  3. Step 3: Cross multiply
    369.72x = 554.94 × 302.07
  4. Step 4: Simplify right side
    369.72x = 167,630.73
  5. Step 5: Solve for x
    x = 167,630.73/369.72
  6. Step 6: Final answer
    x = 453.40

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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.