Finding the Fourth Proportional to 309,566.52, 427,206.69 and 173,630.70
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Solution
The fourth proportional to 309,566.52, 427,206.69 and 173,630.70 is: 239,613.11
Step by Step Solution
- Step 1: Write the proportion equation
309,566.52 : 427,206.69 = 173,630.70 : x - Step 2: Convert to fraction form
309,566.52/427,206.69 = 173,630.70/x - Step 3: Cross multiply
309,566.52x = 427,206.69 × 173,630.70 - Step 4: Simplify right side
309,566.52x = 74,176,196,629.38 - Step 5: Solve for x
x = 74,176,196,629.38/309,566.52 - Step 6: Final answer
x = 239,613.11
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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.