Finding the Fourth Proportional to 225,349.16, 310,981.91 and 123,381.09
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Solution
The fourth proportional to 225,349.16, 310,981.91 and 123,381.09 is: 170,265.94
Step by Step Solution
- Step 1: Write the proportion equation
225,349.16 : 310,981.91 = 123,381.09 : x - Step 2: Convert to fraction form
225,349.16/310,981.91 = 123,381.09/x - Step 3: Cross multiply
225,349.16x = 310,981.91 × 123,381.09 - Step 4: Simplify right side
225,349.16x = 38,369,286,409.18 - Step 5: Solve for x
x = 38,369,286,409.18/225,349.16 - Step 6: Final answer
x = 170,265.94
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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.