Finding the Fourth Proportional to 249,948.75, 344,929.29 and 136,771.50
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Solution
The fourth proportional to 249,948.75, 344,929.29 and 136,771.50 is: 188,744.68
Step by Step Solution
- Step 1: Write the proportion equation
249,948.75 : 344,929.29 = 136,771.50 : x - Step 2: Convert to fraction form
249,948.75/344,929.29 = 136,771.50/x - Step 3: Cross multiply
249,948.75x = 344,929.29 × 136,771.50 - Step 4: Simplify right side
249,948.75x = 47,176,496,387.24 - Step 5: Solve for x
x = 47,176,496,387.24/249,948.75 - Step 6: Final answer
x = 188,744.68
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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.