Finding the Fourth Proportional to 249,173.21, 343,854.15 and 135,996.77
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Solution
The fourth proportional to 249,173.21, 343,854.15 and 135,996.77 is: 187,672.88
Step by Step Solution
- Step 1: Write the proportion equation
249,173.21 : 343,854.15 = 135,996.77 : x - Step 2: Convert to fraction form
249,173.21/343,854.15 = 135,996.77/x - Step 3: Cross multiply
249,173.21x = 343,854.15 × 135,996.77 - Step 4: Simplify right side
249,173.21x = 46,763,053,751.10 - Step 5: Solve for x
x = 46,763,053,751.10/249,173.21 - Step 6: Final answer
x = 187,672.88
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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.