Finding the Fourth Proportional to 285,331.36, 393,769.65 and 158,006.95
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Solution
The fourth proportional to 285,331.36, 393,769.65 and 158,006.95 is: 218,056.45
Step by Step Solution
- Step 1: Write the proportion equation
285,331.36 : 393,769.65 = 158,006.95 : x - Step 2: Convert to fraction form
285,331.36/393,769.65 = 158,006.95/x - Step 3: Cross multiply
285,331.36x = 393,769.65 × 158,006.95 - Step 4: Simplify right side
285,331.36x = 62,218,343,222.12 - Step 5: Solve for x
x = 62,218,343,222.12/285,331.36 - Step 6: Final answer
x = 218,056.45
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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.