Finding the Fourth Proportional to 312,565.74, 431,342.82 and 169,325.84
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Solution
The fourth proportional to 312,565.74, 431,342.82 and 169,325.84 is: 233,670.80
Step by Step Solution
- Step 1: Write the proportion equation
312,565.74 : 431,342.82 = 169,325.84 : x - Step 2: Convert to fraction form
312,565.74/431,342.82 = 169,325.84/x - Step 3: Cross multiply
312,565.74x = 431,342.82 × 169,325.84 - Step 4: Simplify right side
312,565.74x = 73,037,486,402.83 - Step 5: Solve for x
x = 73,037,486,402.83/312,565.74 - Step 6: Final answer
x = 233,670.80
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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.