Finding the Fourth Proportional to 355,528.36, 532,709.34 and 215,327.08
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Solution
The fourth proportional to 355,528.36, 532,709.34 and 215,327.08 is: 322,637.40
Step by Step Solution
- Step 1: Write the proportion equation
355,528.36 : 532,709.34 = 215,327.08 : x - Step 2: Convert to fraction form
355,528.36/532,709.34 = 215,327.08/x - Step 3: Cross multiply
355,528.36x = 532,709.34 × 215,327.08 - Step 4: Simplify right side
355,528.36x = 114,706,746,670.93 - Step 5: Solve for x
x = 114,706,746,670.93/355,528.36 - Step 6: Final answer
x = 322,637.40
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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.