Finding the Fourth Proportional to 291,958.47, 402,896.21 and 164,638.53
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Solution
The fourth proportional to 291,958.47, 402,896.21 and 164,638.53 is: 227,197.52
Step by Step Solution
- Step 1: Write the proportion equation
291,958.47 : 402,896.21 = 164,638.53 : x - Step 2: Convert to fraction form
291,958.47/402,896.21 = 164,638.53/x - Step 3: Cross multiply
291,958.47x = 402,896.21 × 164,638.53 - Step 4: Simplify right side
291,958.47x = 66,332,238,933.78 - Step 5: Solve for x
x = 66,332,238,933.78/291,958.47 - Step 6: Final answer
x = 227,197.52
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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.