Finding the Fourth Proportional to 210,876.93, 291,130.47 and 139,464.09
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Solution
The fourth proportional to 210,876.93, 291,130.47 and 139,464.09 is: 192,540.01
Step by Step Solution
- Step 1: Write the proportion equation
210,876.93 : 291,130.47 = 139,464.09 : x - Step 2: Convert to fraction form
210,876.93/291,130.47 = 139,464.09/x - Step 3: Cross multiply
210,876.93x = 291,130.47 × 139,464.09 - Step 4: Simplify right side
210,876.93x = 40,602,246,069.82 - Step 5: Solve for x
x = 40,602,246,069.82/210,876.93 - Step 6: Final answer
x = 192,540.01
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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.