Finding the Fourth Proportional to 249,876.57, 344,837.97 and 136,699.32
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Solution
The fourth proportional to 249,876.57, 344,837.97 and 136,699.32 is: 188,649.60
Step by Step Solution
- Step 1: Write the proportion equation
249,876.57 : 344,837.97 = 136,699.32 : x - Step 2: Convert to fraction form
249,876.57/344,837.97 = 136,699.32/x - Step 3: Cross multiply
249,876.57x = 344,837.97 × 136,699.32 - Step 4: Simplify right side
249,876.57x = 47,139,116,009.18 - Step 5: Solve for x
x = 47,139,116,009.18/249,876.57 - Step 6: Final answer
x = 188,649.60
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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.