Finding the Fourth Proportional to 211,465.74, 291,845.62 and 135,055.02
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Solution
The fourth proportional to 211,465.74, 291,845.62 and 135,055.02 is: 186,390.55
Step by Step Solution
- Step 1: Write the proportion equation
211,465.74 : 291,845.62 = 135,055.02 : x - Step 2: Convert to fraction form
211,465.74/291,845.62 = 135,055.02/x - Step 3: Cross multiply
211,465.74x = 291,845.62 × 135,055.02 - Step 4: Simplify right side
211,465.74x = 39,415,216,046.01 - Step 5: Solve for x
x = 39,415,216,046.01/211,465.74 - Step 6: Final answer
x = 186,390.55
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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.