Finding the Fourth Proportional to 312,492.17, 431,248.01 and 176,531.84
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Solution
The fourth proportional to 312,492.17, 431,248.01 and 176,531.84 is: 243,618.92
Step by Step Solution
- Step 1: Write the proportion equation
312,492.17 : 431,248.01 = 176,531.84 : x - Step 2: Convert to fraction form
312,492.17/431,248.01 = 176,531.84/x - Step 3: Cross multiply
312,492.17x = 431,248.01 × 176,531.84 - Step 4: Simplify right side
312,492.17x = 76,129,004,701.64 - Step 5: Solve for x
x = 76,129,004,701.64/312,492.17 - Step 6: Final answer
x = 243,618.92
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1.5x scale
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.