Finding the Fourth Proportional to 230,913.36, 318,588.12 and 135,424.08
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Solution
The fourth proportional to 230,913.36, 318,588.12 and 135,424.08 is: 186,842.82
Step by Step Solution
- Step 1: Write the proportion equation
230,913.36 : 318,588.12 = 135,424.08 : x - Step 2: Convert to fraction form
230,913.36/318,588.12 = 135,424.08/x - Step 3: Cross multiply
230,913.36x = 318,588.12 × 135,424.08 - Step 4: Simplify right side
230,913.36x = 43,144,503,049.93 - Step 5: Solve for x
x = 43,144,503,049.93/230,913.36 - Step 6: Final answer
x = 186,842.82
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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.