Finding the Fourth Proportional to 211,395.04, 291,725.06 and 115,899.70
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Solution
The fourth proportional to 211,395.04, 291,725.06 and 115,899.70 is: 159,941.53
Step by Step Solution
- Step 1: Write the proportion equation
211,395.04 : 291,725.06 = 115,899.70 : x - Step 2: Convert to fraction form
211,395.04/291,725.06 = 115,899.70/x - Step 3: Cross multiply
211,395.04x = 291,725.06 × 115,899.70 - Step 4: Simplify right side
211,395.04x = 33,810,846,936.48 - Step 5: Solve for x
x = 33,810,846,936.48/211,395.04 - Step 6: Final answer
x = 159,941.53
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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.