Finding the Fourth Proportional to 285,289.92, 393,700.08 and 157,965.48
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Solution
The fourth proportional to 285,289.92, 393,700.08 and 157,965.48 is: 217,992.36
Step by Step Solution
- Step 1: Write the proportion equation
285,289.92 : 393,700.08 = 157,965.48 : x - Step 2: Convert to fraction form
285,289.92/393,700.08 = 157,965.48/x - Step 3: Cross multiply
285,289.92x = 393,700.08 × 157,965.48 - Step 4: Simplify right side
285,289.92x = 62,191,022,113.24 - Step 5: Solve for x
x = 62,191,022,113.24/285,289.92 - Step 6: Final answer
x = 217,992.36
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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.