Finding the Fourth Proportional to 190,725.79, 286,277.01 and 143,175.55
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Solution
The fourth proportional to 190,725.79, 286,277.01 and 143,175.55 is: 214,904.70
Step by Step Solution
- Step 1: Write the proportion equation
190,725.79 : 286,277.01 = 143,175.55 : x - Step 2: Convert to fraction form
190,725.79/286,277.01 = 143,175.55/x - Step 3: Cross multiply
190,725.79x = 286,277.01 × 143,175.55 - Step 4: Simplify right side
190,725.79x = 40,987,868,359.11 - Step 5: Solve for x
x = 40,987,868,359.11/190,725.79 - Step 6: Final answer
x = 214,904.70
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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.