Finding the Fourth Proportional to 319,170.67, 478,865.36 and 108,956.23
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Solution
The fourth proportional to 319,170.67, 478,865.36 and 108,956.23 is: 163,471.68
Step by Step Solution
- Step 1: Write the proportion equation
319,170.67 : 478,865.36 = 108,956.23 : x - Step 2: Convert to fraction form
319,170.67/478,865.36 = 108,956.23/x - Step 3: Cross multiply
319,170.67x = 478,865.36 × 108,956.23 - Step 4: Simplify right side
319,170.67x = 52,175,364,303.19 - Step 5: Solve for x
x = 52,175,364,303.19/319,170.67 - Step 6: Final answer
x = 163,471.68
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.