Finding the Fourth Proportional to 478,477.80, 717,716.70 and 194,167.80
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Solution
The fourth proportional to 478,477.80, 717,716.70 and 194,167.80 is: 291,251.70
Step by Step Solution
- Step 1: Write the proportion equation
478,477.80 : 717,716.70 = 194,167.80 : x - Step 2: Convert to fraction form
478,477.80/717,716.70 = 194,167.80/x - Step 3: Cross multiply
478,477.80x = 717,716.70 × 194,167.80 - Step 4: Simplify right side
478,477.80x = 139,357,472,662.26 - Step 5: Solve for x
x = 139,357,472,662.26/478,477.80 - Step 6: Final answer
x = 291,251.70
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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.