Finding the Fourth Proportional to 353,193.48, 487,548.18 and 217,282.50
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Solution
The fourth proportional to 353,193.48, 487,548.18 and 217,282.50 is: 299,936.70
Step by Step Solution
- Step 1: Write the proportion equation
353,193.48 : 487,548.18 = 217,282.50 : x - Step 2: Convert to fraction form
353,193.48/487,548.18 = 217,282.50/x - Step 3: Cross multiply
353,193.48x = 487,548.18 × 217,282.50 - Step 4: Simplify right side
353,193.48x = 105,935,687,420.85 - Step 5: Solve for x
x = 105,935,687,420.85/353,193.48 - Step 6: Final answer
x = 299,936.70
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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.