Finding the Fourth Proportional to 191,406.16, 286,818.24 and 91,428.68
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Solution
The fourth proportional to 191,406.16, 286,818.24 and 91,428.68 is: 137,004.02
Step by Step Solution
- Step 1: Write the proportion equation
191,406.16 : 286,818.24 = 91,428.68 : x - Step 2: Convert to fraction form
191,406.16/286,818.24 = 91,428.68/x - Step 3: Cross multiply
191,406.16x = 286,818.24 × 91,428.68 - Step 4: Simplify right side
191,406.16x = 26,223,413,083.12 - Step 5: Solve for x
x = 26,223,413,083.12/191,406.16 - Step 6: Final answer
x = 137,004.02
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.