Finding the Fourth Proportional to 317,811.70, 438,471.51 and 181,796.09
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Solution
The fourth proportional to 317,811.70, 438,471.51 and 181,796.09 is: 250,816.46
Step by Step Solution
- Step 1: Write the proportion equation
317,811.70 : 438,471.51 = 181,796.09 : x - Step 2: Convert to fraction form
317,811.70/438,471.51 = 181,796.09/x - Step 3: Cross multiply
317,811.70x = 438,471.51 × 181,796.09 - Step 4: Simplify right side
317,811.70x = 79,712,406,094.40 - Step 5: Solve for x
x = 79,712,406,094.40/317,811.70 - Step 6: Final answer
x = 250,816.46
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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.