Finding the Fourth Proportional to 418,220.74, 577,149.87 and 227,237.32
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Solution
The fourth proportional to 418,220.74, 577,149.87 and 227,237.32 is: 313,590.35
Step by Step Solution
- Step 1: Write the proportion equation
418,220.74 : 577,149.87 = 227,237.32 : x - Step 2: Convert to fraction form
418,220.74/577,149.87 = 227,237.32/x - Step 3: Cross multiply
418,220.74x = 577,149.87 × 227,237.32 - Step 4: Simplify right side
418,220.74x = 131,149,989,697.15 - Step 5: Solve for x
x = 131,149,989,697.15/418,220.74 - Step 6: Final answer
x = 313,590.35
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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.