Finding the Fourth Proportional to 319,569.21, 478,896.91 and 234,663.26
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Solution
The fourth proportional to 319,569.21, 478,896.91 and 234,663.26 is: 351,659.37
Step by Step Solution
- Step 1: Write the proportion equation
319,569.21 : 478,896.91 = 234,663.26 : x - Step 2: Convert to fraction form
319,569.21/478,896.91 = 234,663.26/x - Step 3: Cross multiply
319,569.21x = 478,896.91 × 234,663.26 - Step 4: Simplify right side
319,569.21x = 112,379,507,123.38 - Step 5: Solve for x
x = 112,379,507,123.38/319,569.21 - Step 6: Final answer
x = 351,659.37
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.