Finding the Fourth Proportional to 249,093.56, 343,749.12 and 135,916.31
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Solution
The fourth proportional to 249,093.56, 343,749.12 and 135,916.31 is: 187,564.51
Step by Step Solution
- Step 1: Write the proportion equation
249,093.56 : 343,749.12 = 135,916.31 : x - Step 2: Convert to fraction form
249,093.56/343,749.12 = 135,916.31/x - Step 3: Cross multiply
249,093.56x = 343,749.12 × 135,916.31 - Step 4: Simplify right side
249,093.56x = 46,721,112,305.83 - Step 5: Solve for x
x = 46,721,112,305.83/249,093.56 - Step 6: Final answer
x = 187,564.51
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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.