Finding the Fourth Proportional to 229,903.74, 317,269.98 and 129,301.74
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Solution
The fourth proportional to 229,903.74, 317,269.98 and 129,301.74 is: 178,437.99
Step by Step Solution
- Step 1: Write the proportion equation
229,903.74 : 317,269.98 = 129,301.74 : x - Step 2: Convert to fraction form
229,903.74/317,269.98 = 129,301.74/x - Step 3: Cross multiply
229,903.74x = 317,269.98 × 129,301.74 - Step 4: Simplify right side
229,903.74x = 41,023,560,463.77 - Step 5: Solve for x
x = 41,023,560,463.77/229,903.74 - Step 6: Final answer
x = 178,437.99
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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.