Finding the Third Proportional to 139 and 358.50
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Solution
The third proportional to 139 and 358.50 is: 924.62
Step by Step Solution
- Step 1: Write the proportion equation
139 : 358.50 = 358.50 : x - Step 2: Convert to fraction form
139/358.50 = 358.50/x - Step 3: Cross multiply
139x = 358.50 × 358.50 - Step 4: Simplify right side
139x = 128,522.25 - Step 5: Solve for x
x = 128,522.25/139 - Step 6: Final answer
x = 924.62
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Why These Related Problems?
These problems maintain the same ratio (2.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.