Finding the Fourth Proportional to 165,328.19, 247,795.40 and 115,136.54
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Solution
The fourth proportional to 165,328.19, 247,795.40 and 115,136.54 is: 172,567.70
Step by Step Solution
- Step 1: Write the proportion equation
165,328.19 : 247,795.40 = 115,136.54 : x - Step 2: Convert to fraction form
165,328.19/247,795.40 = 115,136.54/x - Step 3: Cross multiply
165,328.19x = 247,795.40 × 115,136.54 - Step 4: Simplify right side
165,328.19x = 28,530,304,962.01 - Step 5: Solve for x
x = 28,530,304,962.01/165,328.19 - Step 6: Final answer
x = 172,567.70
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1.5x scale
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.