Finding the Fourth Proportional to 419,160.16, 578,441.09 and 228,174.99
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Solution
The fourth proportional to 419,160.16, 578,441.09 and 228,174.99 is: 314,881.52
Step by Step Solution
- Step 1: Write the proportion equation
419,160.16 : 578,441.09 = 228,174.99 : x - Step 2: Convert to fraction form
419,160.16/578,441.09 = 228,174.99/x - Step 3: Cross multiply
419,160.16x = 578,441.09 × 228,174.99 - Step 4: Simplify right side
419,160.16x = 131,985,789,926.34 - Step 5: Solve for x
x = 131,985,789,926.34/419,160.16 - Step 6: Final answer
x = 314,881.52
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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.