Finding the Fourth Proportional to 211,252.32, 291,531.12 and 115,757.28
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Solution
The fourth proportional to 211,252.32, 291,531.12 and 115,757.28 is: 159,746.65
Step by Step Solution
- Step 1: Write the proportion equation
211,252.32 : 291,531.12 = 115,757.28 : x - Step 2: Convert to fraction form
211,252.32/291,531.12 = 115,757.28/x - Step 3: Cross multiply
211,252.32x = 291,531.12 × 115,757.28 - Step 4: Simplify right side
211,252.32x = 33,746,849,486.55 - Step 5: Solve for x
x = 33,746,849,486.55/211,252.32 - Step 6: Final answer
x = 159,746.65
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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.