Finding the Fourth Proportional to 286,006.62, 394,689.19 and 158,681.91
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Solution
The fourth proportional to 286,006.62, 394,689.19 and 158,681.91 is: 218,981.07
Step by Step Solution
- Step 1: Write the proportion equation
286,006.62 : 394,689.19 = 158,681.91 : x - Step 2: Convert to fraction form
286,006.62/394,689.19 = 158,681.91/x - Step 3: Cross multiply
286,006.62x = 394,689.19 × 158,681.91 - Step 4: Simplify right side
286,006.62x = 62,630,035,906.46 - Step 5: Solve for x
x = 62,630,035,906.46/286,006.62 - Step 6: Final answer
x = 218,981.07
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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.