Finding the Fourth Proportional to 319,651.80, 479,477.70 and 133,027.80
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Solution
The fourth proportional to 319,651.80, 479,477.70 and 133,027.80 is: 199,541.70
Step by Step Solution
- Step 1: Write the proportion equation
319,651.80 : 479,477.70 = 133,027.80 : x - Step 2: Convert to fraction form
319,651.80/479,477.70 = 133,027.80/x - Step 3: Cross multiply
319,651.80x = 479,477.70 × 133,027.80 - Step 4: Simplify right side
319,651.80x = 63,783,863,580.06 - Step 5: Solve for x
x = 63,783,863,580.06/319,651.80 - Step 6: Final answer
x = 199,541.70
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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.