Finding the Fourth Proportional to 419,189.32, 578,480.58 and 228,202.12
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Solution
The fourth proportional to 419,189.32, 578,480.58 and 228,202.12 is: 314,918.55
Step by Step Solution
- Step 1: Write the proportion equation
419,189.32 : 578,480.58 = 228,202.12 : x - Step 2: Convert to fraction form
419,189.32/578,480.58 = 228,202.12/x - Step 3: Cross multiply
419,189.32x = 578,480.58 × 228,202.12 - Step 4: Simplify right side
419,189.32x = 132,010,494,734.83 - Step 5: Solve for x
x = 132,010,494,734.83/419,189.32 - Step 6: Final answer
x = 314,918.55
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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.