Finding the Fourth Proportional to 249,786.69, 344,705.39 and 135,065.06
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Solution
The fourth proportional to 249,786.69, 344,705.39 and 135,065.06 is: 186,389.65
Step by Step Solution
- Step 1: Write the proportion equation
249,786.69 : 344,705.39 = 135,065.06 : x - Step 2: Convert to fraction form
249,786.69/344,705.39 = 135,065.06/x - Step 3: Cross multiply
249,786.69x = 344,705.39 × 135,065.06 - Step 4: Simplify right side
249,786.69x = 46,557,655,044.44 - Step 5: Solve for x
x = 46,557,655,044.44/249,786.69 - Step 6: Final answer
x = 186,389.65
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1.5x scale
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.