Finding the Fourth Proportional to 253,417.52, 349,717.10 and 137,130.99
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Solution
The fourth proportional to 253,417.52, 349,717.10 and 137,130.99 is: 189,241.26
Step by Step Solution
- Step 1: Write the proportion equation
253,417.52 : 349,717.10 = 137,130.99 : x - Step 2: Convert to fraction form
253,417.52/349,717.10 = 137,130.99/x - Step 3: Cross multiply
253,417.52x = 349,717.10 × 137,130.99 - Step 4: Simplify right side
253,417.52x = 47,957,049,708.69 - Step 5: Solve for x
x = 47,957,049,708.69/253,417.52 - Step 6: Final answer
x = 189,241.26
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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.