Finding the Fourth Proportional to 249,788.87, 344,711.36 and 136,609.19
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Solution
The fourth proportional to 249,788.87, 344,711.36 and 136,609.19 is: 188,522.17
Step by Step Solution
- Step 1: Write the proportion equation
249,788.87 : 344,711.36 = 136,609.19 : x - Step 2: Convert to fraction form
249,788.87/344,711.36 = 136,609.19/x - Step 3: Cross multiply
249,788.87x = 344,711.36 × 136,609.19 - Step 4: Simplify right side
249,788.87x = 47,090,739,673.40 - Step 5: Solve for x
x = 47,090,739,673.40/249,788.87 - Step 6: Final answer
x = 188,522.17
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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.