Finding the Fourth Proportional to 189,313.11, 261,252.09 and 104,430.15
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Solution
The fourth proportional to 189,313.11, 261,252.09 and 104,430.15 is: 144,113.61
Step by Step Solution
- Step 1: Write the proportion equation
189,313.11 : 261,252.09 = 104,430.15 : x - Step 2: Convert to fraction form
189,313.11/261,252.09 = 104,430.15/x - Step 3: Cross multiply
189,313.11x = 261,252.09 × 104,430.15 - Step 4: Simplify right side
189,313.11x = 27,282,594,946.51 - Step 5: Solve for x
x = 27,282,594,946.51/189,313.11 - Step 6: Final answer
x = 144,113.61
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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.