Finding the Fourth Proportional to 319,070.51, 440,311.65 and 173,877.59
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Solution
The fourth proportional to 319,070.51, 440,311.65 and 173,877.59 is: 239,947.99
Step by Step Solution
- Step 1: Write the proportion equation
319,070.51 : 440,311.65 = 173,877.59 : x - Step 2: Convert to fraction form
319,070.51/440,311.65 = 173,877.59/x - Step 3: Cross multiply
319,070.51x = 440,311.65 × 173,877.59 - Step 4: Simplify right side
319,070.51x = 76,560,328,550.92 - Step 5: Solve for x
x = 76,560,328,550.92/319,070.51 - Step 6: Final answer
x = 239,947.99
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.