Finding the Fourth Proportional to 291,153.50, 401,784.01 and 162,091.99
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Solution
The fourth proportional to 291,153.50, 401,784.01 and 162,091.99 is: 223,682.58
Step by Step Solution
- Step 1: Write the proportion equation
291,153.50 : 401,784.01 = 162,091.99 : x - Step 2: Convert to fraction form
291,153.50/401,784.01 = 162,091.99/x - Step 3: Cross multiply
291,153.50x = 401,784.01 × 162,091.99 - Step 4: Simplify right side
291,153.50x = 65,125,968,479.81 - Step 5: Solve for x
x = 65,125,968,479.81/291,153.50 - Step 6: Final answer
x = 223,682.58
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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.