Finding the Fourth Proportional to 312,549.84, 431,317.84 and 176,583.74
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Solution
The fourth proportional to 312,549.84, 431,317.84 and 176,583.74 is: 243,685.02
Step by Step Solution
- Step 1: Write the proportion equation
312,549.84 : 431,317.84 = 176,583.74 : x - Step 2: Convert to fraction form
312,549.84/431,317.84 = 176,583.74/x - Step 3: Cross multiply
312,549.84x = 431,317.84 × 176,583.74 - Step 4: Simplify right side
312,549.84x = 76,163,714,717.87 - Step 5: Solve for x
x = 76,163,714,717.87/312,549.84 - Step 6: Final answer
x = 243,685.02
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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.