Finding the Fourth Proportional to 192,313.68, 287,965.80 and 135,848.40
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Solution
The fourth proportional to 192,313.68, 287,965.80 and 135,848.40 is: 203,416.07
Step by Step Solution
- Step 1: Write the proportion equation
192,313.68 : 287,965.80 = 135,848.40 : x - Step 2: Convert to fraction form
192,313.68/287,965.80 = 135,848.40/x - Step 3: Cross multiply
192,313.68x = 287,965.80 × 135,848.40 - Step 4: Simplify right side
192,313.68x = 39,119,693,184.72 - Step 5: Solve for x
x = 39,119,693,184.72/192,313.68 - Step 6: Final answer
x = 203,416.07
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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.