Finding the Fourth Proportional to 153,252.29, 211,469.58 and 85,253.19
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Solution
The fourth proportional to 153,252.29, 211,469.58 and 85,253.19 is: 117,639.07
Step by Step Solution
- Step 1: Write the proportion equation
153,252.29 : 211,469.58 = 85,253.19 : x - Step 2: Convert to fraction form
153,252.29/211,469.58 = 85,253.19/x - Step 3: Cross multiply
153,252.29x = 211,469.58 × 85,253.19 - Step 4: Simplify right side
153,252.29x = 18,028,456,282.96 - Step 5: Solve for x
x = 18,028,456,282.96/153,252.29 - Step 6: Final answer
x = 117,639.07
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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.