Finding the Fourth Proportional to 219.44, 302.08 and 207.28
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Solution
The fourth proportional to 219.44, 302.08 and 207.28 is: 285.34
Step by Step Solution
- Step 1: Write the proportion equation
219.44 : 302.08 = 207.28 : x - Step 2: Convert to fraction form
219.44/302.08 = 207.28/x - Step 3: Cross multiply
219.44x = 302.08 × 207.28 - Step 4: Simplify right side
219.44x = 62,615.14 - Step 5: Solve for x
x = 62,615.14/219.44 - Step 6: Final answer
x = 285.34
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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.