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Finding the Fourth Proportional to 636.45, 954.06 and 307.18

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Solution

The fourth proportional to 636.45, 954.06 and 307.18 is: 460.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    636.45 : 954.06 = 307.18 : x
  2. Step 2: Convert to fraction form
    636.45/954.06 = 307.18/x
  3. Step 3: Cross multiply
    636.45x = 954.06 × 307.18
  4. Step 4: Simplify right side
    636.45x = 293,068.15
  5. Step 5: Solve for x
    x = 293,068.15/636.45
  6. Step 6: Final answer
    x = 460.47

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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.