Finding the Fourth Proportional to 230,666.70, 318,312.83 and 135,236.96
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Solution
The fourth proportional to 230,666.70, 318,312.83 and 135,236.96 is: 186,622.77
Step by Step Solution
- Step 1: Write the proportion equation
230,666.70 : 318,312.83 = 135,236.96 : x - Step 2: Convert to fraction form
230,666.70/318,312.83 = 135,236.96/x - Step 3: Cross multiply
230,666.70x = 318,312.83 × 135,236.96 - Step 4: Simplify right side
230,666.70x = 43,047,657,866.63 - Step 5: Solve for x
x = 43,047,657,866.63/230,666.70 - Step 6: Final answer
x = 186,622.77
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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.