Finding the Fourth Proportional to 312,466.47, 431,204.07 and 169,226.67
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Solution
The fourth proportional to 312,466.47, 431,204.07 and 169,226.67 is: 233,532.99
Step by Step Solution
- Step 1: Write the proportion equation
312,466.47 : 431,204.07 = 169,226.67 : x - Step 2: Convert to fraction form
312,466.47/431,204.07 = 169,226.67/x - Step 3: Cross multiply
312,466.47x = 431,204.07 × 169,226.67 - Step 4: Simplify right side
312,466.47x = 72,971,228,856.55 - Step 5: Solve for x
x = 72,971,228,856.55/312,466.47 - Step 6: Final answer
x = 233,532.99
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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.