Finding the Fourth Proportional to 319,057.85, 440,302.79 and 175,823.02
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Solution
The fourth proportional to 319,057.85, 440,302.79 and 175,823.02 is: 242,637.40
Step by Step Solution
- Step 1: Write the proportion equation
319,057.85 : 440,302.79 = 175,823.02 : x - Step 2: Convert to fraction form
319,057.85/440,302.79 = 175,823.02/x - Step 3: Cross multiply
319,057.85x = 440,302.79 × 175,823.02 - Step 4: Simplify right side
319,057.85x = 77,415,366,252.23 - Step 5: Solve for x
x = 77,415,366,252.23/319,057.85 - Step 6: Final answer
x = 242,637.40
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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.