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Finding the Fourth Proportional to 445.69, 615.33 and 334.27

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Solution

The fourth proportional to 445.69, 615.33 and 334.27 is: 461.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    445.69 : 615.33 = 334.27 : x
  2. Step 2: Convert to fraction form
    445.69/615.33 = 334.27/x
  3. Step 3: Cross multiply
    445.69x = 615.33 × 334.27
  4. Step 4: Simplify right side
    445.69x = 205,686.36
  5. Step 5: Solve for x
    x = 205,686.36/445.69
  6. Step 6: Final answer
    x = 461.50

Related Problems

Find fourth proportional to 222.85, 307.67 and 167.14
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Double scale
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1.5x scale

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.