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Finding the Fourth Proportional to 615.26, 922.11 and 307.22

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Solution

The fourth proportional to 615.26, 922.11 and 307.22 is: 460.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    615.26 : 922.11 = 307.22 : x
  2. Step 2: Convert to fraction form
    615.26/922.11 = 307.22/x
  3. Step 3: Cross multiply
    615.26x = 922.11 × 307.22
  4. Step 4: Simplify right side
    615.26x = 283,290.63
  5. Step 5: Solve for x
    x = 283,290.63/615.26
  6. Step 6: Final answer
    x = 460.44

Related Problems

Find fourth proportional to 307.63, 461.06 and 153.61
Half scale
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Double scale
Find fourth proportional to 616.26, 923.61 and 308.22
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.