Finding the Fourth Proportional to 291,778.34, 402,665.36 and 164,451.20
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Solution
The fourth proportional to 291,778.34, 402,665.36 and 164,451.20 is: 226,948.99
Step by Step Solution
- Step 1: Write the proportion equation
291,778.34 : 402,665.36 = 164,451.20 : x - Step 2: Convert to fraction form
291,778.34/402,665.36 = 164,451.20/x - Step 3: Cross multiply
291,778.34x = 402,665.36 × 164,451.20 - Step 4: Simplify right side
291,778.34x = 66,218,798,814.85 - Step 5: Solve for x
x = 66,218,798,814.85/291,778.34 - Step 6: Final answer
x = 226,948.99
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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.