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Finding the Fourth Proportional to 452.69, 624.51 and 305.27

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Solution

The fourth proportional to 452.69, 624.51 and 305.27 is: 421.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    452.69 : 624.51 = 305.27 : x
  2. Step 2: Convert to fraction form
    452.69/624.51 = 305.27/x
  3. Step 3: Cross multiply
    452.69x = 624.51 × 305.27
  4. Step 4: Simplify right side
    452.69x = 190,643.39
  5. Step 5: Solve for x
    x = 190,643.39/452.69
  6. Step 6: Final answer
    x = 421.14

Related Problems

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Double scale
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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.