Finding the Fourth Proportional to 236,699.70, 326,631.12 and 129,247.88
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Solution
The fourth proportional to 236,699.70, 326,631.12 and 129,247.88 is: 178,354.18
Step by Step Solution
- Step 1: Write the proportion equation
236,699.70 : 326,631.12 = 129,247.88 : x - Step 2: Convert to fraction form
236,699.70/326,631.12 = 129,247.88/x - Step 3: Cross multiply
236,699.70x = 326,631.12 × 129,247.88 - Step 4: Simplify right side
236,699.70x = 42,216,379,802.03 - Step 5: Solve for x
x = 42,216,379,802.03/236,699.70 - Step 6: Final answer
x = 178,354.18
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1.5x scale
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.