Finding the Fourth Proportional to 211,386.10, 291,706.50 and 115,889.53
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Solution
The fourth proportional to 211,386.10, 291,706.50 and 115,889.53 is: 159,924.09
Step by Step Solution
- Step 1: Write the proportion equation
211,386.10 : 291,706.50 = 115,889.53 : x - Step 2: Convert to fraction form
211,386.10/291,706.50 = 115,889.53/x - Step 3: Cross multiply
211,386.10x = 291,706.50 × 115,889.53 - Step 4: Simplify right side
211,386.10x = 33,805,729,182.95 - Step 5: Solve for x
x = 33,805,729,182.95/211,386.10 - Step 6: Final answer
x = 159,924.09
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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.