Finding the Fourth Proportional to 418,342.42, 577,316.99 and 227,355.80
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Solution
The fourth proportional to 418,342.42, 577,316.99 and 227,355.80 is: 313,753.42
Step by Step Solution
- Step 1: Write the proportion equation
418,342.42 : 577,316.99 = 227,355.80 : x - Step 2: Convert to fraction form
418,342.42/577,316.99 = 227,355.80/x - Step 3: Cross multiply
418,342.42x = 577,316.99 × 227,355.80 - Step 4: Simplify right side
418,342.42x = 131,256,366,115.04 - Step 5: Solve for x
x = 131,256,366,115.04/418,342.42 - Step 6: Final answer
x = 313,753.42
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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.