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Finding the Fourth Proportional to 615.50, 923.26 and 204.67

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Solution

The fourth proportional to 615.50, 923.26 and 204.67 is: 307.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    615.50 : 923.26 = 204.67 : x
  2. Step 2: Convert to fraction form
    615.50/923.26 = 204.67/x
  3. Step 3: Cross multiply
    615.50x = 923.26 × 204.67
  4. Step 4: Simplify right side
    615.50x = 188,962.63
  5. Step 5: Solve for x
    x = 188,962.63/615.50
  6. Step 6: Final answer
    x = 307.01

Related Problems

Find fourth proportional to 307.75, 461.63 and 102.33
Half scale
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Double scale
Find fourth proportional to 616.50, 924.76 and 205.67
Similar ratio
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1.5x scale

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.