Finding the Fourth Proportional to 207,655.23, 286,688.69 and 136,159.95
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Solution
The fourth proportional to 207,655.23, 286,688.69 and 136,159.95 is: 187,982.34
Step by Step Solution
- Step 1: Write the proportion equation
207,655.23 : 286,688.69 = 136,159.95 : x - Step 2: Convert to fraction form
207,655.23/286,688.69 = 136,159.95/x - Step 3: Cross multiply
207,655.23x = 286,688.69 × 136,159.95 - Step 4: Simplify right side
207,655.23x = 39,035,517,015.17 - Step 5: Solve for x
x = 39,035,517,015.17/207,655.23 - Step 6: Final answer
x = 187,982.34
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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.