Finding the Fourth Proportional to 219.08, 328.08 and 171.02
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Solution
The fourth proportional to 219.08, 328.08 and 171.02 is: 256.11
Step by Step Solution
- Step 1: Write the proportion equation
219.08 : 328.08 = 171.02 : x - Step 2: Convert to fraction form
219.08/328.08 = 171.02/x - Step 3: Cross multiply
219.08x = 328.08 × 171.02 - Step 4: Simplify right side
219.08x = 56,108.24 - Step 5: Solve for x
x = 56,108.24/219.08 - Step 6: Final answer
x = 256.11
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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.