Finding the Fourth Proportional to 418,416.84, 577,416.60 and 227,430.99
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Solution
The fourth proportional to 418,416.84, 577,416.60 and 227,430.99 is: 313,855.51
Step by Step Solution
- Step 1: Write the proportion equation
418,416.84 : 577,416.60 = 227,430.99 : x - Step 2: Convert to fraction form
418,416.84/577,416.60 = 227,430.99/x - Step 3: Cross multiply
418,416.84x = 577,416.60 × 227,430.99 - Step 4: Simplify right side
418,416.84x = 131,322,428,980.43 - Step 5: Solve for x
x = 131,322,428,980.43/418,416.84 - Step 6: Final answer
x = 313,855.51
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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.