Finding the Fourth Proportional to 319,493.80, 479,240.70 and 97,877.80
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Solution
The fourth proportional to 319,493.80, 479,240.70 and 97,877.80 is: 146,816.70
Step by Step Solution
- Step 1: Write the proportion equation
319,493.80 : 479,240.70 = 97,877.80 : x - Step 2: Convert to fraction form
319,493.80/479,240.70 = 97,877.80/x - Step 3: Cross multiply
319,493.80x = 479,240.70 × 97,877.80 - Step 4: Simplify right side
319,493.80x = 46,907,025,386.46 - Step 5: Solve for x
x = 46,907,025,386.46/319,493.80 - Step 6: Final answer
x = 146,816.70
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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.