Finding the Fourth Proportional to 249,528.78, 344,358.21 and 136,358.82
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Solution
The fourth proportional to 249,528.78, 344,358.21 and 136,358.82 is: 188,179.81
Step by Step Solution
- Step 1: Write the proportion equation
249,528.78 : 344,358.21 = 136,358.82 : x - Step 2: Convert to fraction form
249,528.78/344,358.21 = 136,358.82/x - Step 3: Cross multiply
249,528.78x = 344,358.21 × 136,358.82 - Step 4: Simplify right side
249,528.78x = 46,956,279,172.91 - Step 5: Solve for x
x = 46,956,279,172.91/249,528.78 - Step 6: Final answer
x = 188,179.81
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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.