Finding the Fourth Proportional to 310,825.68, 428,937.48 and 176,689.68
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Solution
The fourth proportional to 310,825.68, 428,937.48 and 176,689.68 is: 243,830.65
Step by Step Solution
- Step 1: Write the proportion equation
310,825.68 : 428,937.48 = 176,689.68 : x - Step 2: Convert to fraction form
310,825.68/428,937.48 = 176,689.68/x - Step 3: Cross multiply
310,825.68x = 428,937.48 × 176,689.68 - Step 4: Simplify right side
310,825.68x = 75,788,826,081.21 - Step 5: Solve for x
x = 75,788,826,081.21/310,825.68 - Step 6: Final answer
x = 243,830.65
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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.