Finding the Fourth Proportional to 319,088.70, 478,195.65 and 260,039.70
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Solution
The fourth proportional to 319,088.70, 478,195.65 and 260,039.70 is: 389,703.09
Step by Step Solution
- Step 1: Write the proportion equation
319,088.70 : 478,195.65 = 260,039.70 : x - Step 2: Convert to fraction form
319,088.70/478,195.65 = 260,039.70/x - Step 3: Cross multiply
319,088.70x = 478,195.65 × 260,039.70 - Step 4: Simplify right side
319,088.70x = 124,349,853,367.31 - Step 5: Solve for x
x = 124,349,853,367.31/319,088.70 - Step 6: Final answer
x = 389,703.09
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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.