Finding the Fourth Proportional to 249,726.20, 374,135.70 and 144,231.80
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Solution
The fourth proportional to 249,726.20, 374,135.70 and 144,231.80 is: 216,085.72
Step by Step Solution
- Step 1: Write the proportion equation
249,726.20 : 374,135.70 = 144,231.80 : x - Step 2: Convert to fraction form
249,726.20/374,135.70 = 144,231.80/x - Step 3: Cross multiply
249,726.20x = 374,135.70 × 144,231.80 - Step 4: Simplify right side
249,726.20x = 53,962,265,455.26 - Step 5: Solve for x
x = 53,962,265,455.26/249,726.20 - Step 6: Final answer
x = 216,085.72
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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.