Finding the Fourth Proportional to 249,786.44, 344,705.05 and 135,064.81
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Solution
The fourth proportional to 249,786.44, 344,705.05 and 135,064.81 is: 186,389.31
Step by Step Solution
- Step 1: Write the proportion equation
249,786.44 : 344,705.05 = 135,064.81 : x - Step 2: Convert to fraction form
249,786.44/344,705.05 = 135,064.81/x - Step 3: Cross multiply
249,786.44x = 344,705.05 × 135,064.81 - Step 4: Simplify right side
249,786.44x = 46,557,521,924.26 - Step 5: Solve for x
x = 46,557,521,924.26/249,786.44 - Step 6: Final answer
x = 186,389.31
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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.