Finding the Fourth Proportional to 319,848.70, 478,731.51 and 235,575.70
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Solution
The fourth proportional to 319,848.70, 478,731.51 and 235,575.70 is: 352,596.43
Step by Step Solution
- Step 1: Write the proportion equation
319,848.70 : 478,731.51 = 235,575.70 : x - Step 2: Convert to fraction form
319,848.70/478,731.51 = 235,575.70/x - Step 3: Cross multiply
319,848.70x = 478,731.51 × 235,575.70 - Step 4: Simplify right side
319,848.70x = 112,777,510,580.31 - Step 5: Solve for x
x = 112,777,510,580.31/319,848.70 - Step 6: Final answer
x = 352,596.43
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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.