Finding the Fourth Proportional to 209,116.54, 313,681.63 and 99,547.70
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Solution
The fourth proportional to 209,116.54, 313,681.63 and 99,547.70 is: 149,324.80
Step by Step Solution
- Step 1: Write the proportion equation
209,116.54 : 313,681.63 = 99,547.70 : x - Step 2: Convert to fraction form
209,116.54/313,681.63 = 99,547.70/x - Step 3: Cross multiply
209,116.54x = 313,681.63 × 99,547.70 - Step 4: Simplify right side
209,116.54x = 31,226,284,798.75 - Step 5: Solve for x
x = 31,226,284,798.75/209,116.54 - Step 6: Final answer
x = 149,324.80
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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.