Finding the Fourth Proportional to 319,456.60, 479,184.90 and 97,811.80
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Solution
The fourth proportional to 319,456.60, 479,184.90 and 97,811.80 is: 146,717.70
Step by Step Solution
- Step 1: Write the proportion equation
319,456.60 : 479,184.90 = 97,811.80 : x - Step 2: Convert to fraction form
319,456.60/479,184.90 = 97,811.80/x - Step 3: Cross multiply
319,456.60x = 479,184.90 × 97,811.80 - Step 4: Simplify right side
319,456.60x = 46,869,937,601.82 - Step 5: Solve for x
x = 46,869,937,601.82/319,456.60 - Step 6: Final answer
x = 146,717.70
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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.