Finding the Fourth Proportional to 211,123.19, 291,339.18 and 115,627.84
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Solution
The fourth proportional to 211,123.19, 291,339.18 and 115,627.84 is: 159,560.49
Step by Step Solution
- Step 1: Write the proportion equation
211,123.19 : 291,339.18 = 115,627.84 : x - Step 2: Convert to fraction form
211,123.19/291,339.18 = 115,627.84/x - Step 3: Cross multiply
211,123.19x = 291,339.18 × 115,627.84 - Step 4: Simplify right side
211,123.19x = 33,686,919,362.42 - Step 5: Solve for x
x = 33,686,919,362.42/211,123.19 - Step 6: Final answer
x = 159,560.49
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1.5x scale
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.