Finding the Fourth Proportional to 291,868.68, 402,739.48 and 169,357.80
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Solution
The fourth proportional to 291,868.68, 402,739.48 and 169,357.80 is: 233,690.96
Step by Step Solution
- Step 1: Write the proportion equation
291,868.68 : 402,739.48 = 169,357.80 : x - Step 2: Convert to fraction form
291,868.68/402,739.48 = 169,357.80/x - Step 3: Cross multiply
291,868.68x = 402,739.48 × 169,357.80 - Step 4: Simplify right side
291,868.68x = 68,207,072,305.94 - Step 5: Solve for x
x = 68,207,072,305.94/291,868.68 - Step 6: Final answer
x = 233,690.96
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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.