Finding the Fourth Proportional to 319,281.96, 440,629.08 and 176,041.80
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Solution
The fourth proportional to 319,281.96, 440,629.08 and 176,041.80 is: 242,948.70
Step by Step Solution
- Step 1: Write the proportion equation
319,281.96 : 440,629.08 = 176,041.80 : x - Step 2: Convert to fraction form
319,281.96/440,629.08 = 176,041.80/x - Step 3: Cross multiply
319,281.96x = 440,629.08 × 176,041.80 - Step 4: Simplify right side
319,281.96x = 77,569,136,375.54 - Step 5: Solve for x
x = 77,569,136,375.54/319,281.96 - Step 6: Final answer
x = 242,948.70
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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.