Finding the Fourth Proportional to 312,482.06, 431,225.12 and 169,242.12
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Solution
The fourth proportional to 312,482.06, 431,225.12 and 169,242.12 is: 233,554.06
Step by Step Solution
- Step 1: Write the proportion equation
312,482.06 : 431,225.12 = 169,242.12 : x - Step 2: Convert to fraction form
312,482.06/431,225.12 = 169,242.12/x - Step 3: Cross multiply
312,482.06x = 431,225.12 × 169,242.12 - Step 4: Simplify right side
312,482.06x = 72,981,453,506.05 - Step 5: Solve for x
x = 72,981,453,506.05/312,482.06 - Step 6: Final answer
x = 233,554.06
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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.