Finding the Fourth Proportional to 418,368.12, 577,352.52 and 227,381.55
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Solution
The fourth proportional to 418,368.12, 577,352.52 and 227,381.55 is: 313,788.99
Step by Step Solution
- Step 1: Write the proportion equation
418,368.12 : 577,352.52 = 227,381.55 : x - Step 2: Convert to fraction form
418,368.12/577,352.52 = 227,381.55/x - Step 3: Cross multiply
418,368.12x = 577,352.52 × 227,381.55 - Step 4: Simplify right side
418,368.12x = 131,279,310,894.01 - Step 5: Solve for x
x = 131,279,310,894.01/418,368.12 - Step 6: Final answer
x = 313,788.99
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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.