Finding the Fourth Proportional to 319,686.24, 441,170.68 and 176,446.40
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Solution
The fourth proportional to 319,686.24, 441,170.68 and 176,446.40 is: 243,498.05
Step by Step Solution
- Step 1: Write the proportion equation
319,686.24 : 441,170.68 = 176,446.40 : x - Step 2: Convert to fraction form
319,686.24/441,170.68 = 176,446.40/x - Step 3: Cross multiply
319,686.24x = 441,170.68 × 176,446.40 - Step 4: Simplify right side
319,686.24x = 77,842,977,940.75 - Step 5: Solve for x
x = 77,842,977,940.75/319,686.24 - Step 6: Final answer
x = 243,498.05
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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.