Finding the Fourth Proportional to 173,438.08, 239,383.13 and 105,440.63
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Solution
The fourth proportional to 173,438.08, 239,383.13 and 105,440.63 is: 145,531.52
Step by Step Solution
- Step 1: Write the proportion equation
173,438.08 : 239,383.13 = 105,440.63 : x - Step 2: Convert to fraction form
173,438.08/239,383.13 = 105,440.63/x - Step 3: Cross multiply
173,438.08x = 239,383.13 × 105,440.63 - Step 4: Simplify right side
173,438.08x = 25,240,706,314.45 - Step 5: Solve for x
x = 25,240,706,314.45/173,438.08 - Step 6: Final answer
x = 145,531.52
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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.