Finding the Fourth Proportional to 249,926.40, 374,920.79 and 81,463.68
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Solution
The fourth proportional to 249,926.40, 374,920.79 and 81,463.68 is: 122,205.68
Step by Step Solution
- Step 1: Write the proportion equation
249,926.40 : 374,920.79 = 81,463.68 : x - Step 2: Convert to fraction form
249,926.40/374,920.79 = 81,463.68/x - Step 3: Cross multiply
249,926.40x = 374,920.79 × 81,463.68 - Step 4: Simplify right side
249,926.40x = 30,542,426,854.59 - Step 5: Solve for x
x = 30,542,426,854.59/249,926.40 - Step 6: Final answer
x = 122,205.68
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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.