Finding the Fourth Proportional to 165,713.24, 228,616.08 and 115,441.40
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Solution
The fourth proportional to 165,713.24, 228,616.08 and 115,441.40 is: 159,261.63
Step by Step Solution
- Step 1: Write the proportion equation
165,713.24 : 228,616.08 = 115,441.40 : x - Step 2: Convert to fraction form
165,713.24/228,616.08 = 115,441.40/x - Step 3: Cross multiply
165,713.24x = 228,616.08 × 115,441.40 - Step 4: Simplify right side
165,713.24x = 26,391,760,337.71 - Step 5: Solve for x
x = 26,391,760,337.71/165,713.24 - Step 6: Final answer
x = 159,261.63
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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.