Finding the Fourth Proportional to 216,747.49, 299,115.84 and 130,706.05
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Solution
The fourth proportional to 216,747.49, 299,115.84 and 130,706.05 is: 180,376.94
Step by Step Solution
- Step 1: Write the proportion equation
216,747.49 : 299,115.84 = 130,706.05 : x - Step 2: Convert to fraction form
216,747.49/299,115.84 = 130,706.05/x - Step 3: Cross multiply
216,747.49x = 299,115.84 × 130,706.05 - Step 4: Simplify right side
216,747.49x = 39,096,249,938.83 - Step 5: Solve for x
x = 39,096,249,938.83/216,747.49 - Step 6: Final answer
x = 180,376.94
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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.