Finding the Fourth Proportional to 387,837.99, 581,612.99 and 135,053.60
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Solution
The fourth proportional to 387,837.99, 581,612.99 and 135,053.60 is: 202,530.25
Step by Step Solution
- Step 1: Write the proportion equation
387,837.99 : 581,612.99 = 135,053.60 : x - Step 2: Convert to fraction form
387,837.99/581,612.99 = 135,053.60/x - Step 3: Cross multiply
387,837.99x = 581,612.99 × 135,053.60 - Step 4: Simplify right side
387,837.99x = 78,548,924,522.93 - Step 5: Solve for x
x = 78,548,924,522.93/387,837.99 - Step 6: Final answer
x = 202,530.25
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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.