Finding the Fourth Proportional to 211,426.79, 291,768.75 and 115,935.08
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Solution
The fourth proportional to 211,426.79, 291,768.75 and 115,935.08 is: 159,990.29
Step by Step Solution
- Step 1: Write the proportion equation
211,426.79 : 291,768.75 = 115,935.08 : x - Step 2: Convert to fraction form
211,426.79/291,768.75 = 115,935.08/x - Step 3: Cross multiply
211,426.79x = 291,768.75 × 115,935.08 - Step 4: Simplify right side
211,426.79x = 33,826,231,913.91 - Step 5: Solve for x
x = 33,826,231,913.91/211,426.79 - Step 6: Final answer
x = 159,990.29
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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.