Finding the Fourth Proportional to 399,125.14, 550,804.66 and 217,848.96
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Solution
The fourth proportional to 399,125.14, 550,804.66 and 217,848.96 is: 300,638.10
Step by Step Solution
- Step 1: Write the proportion equation
399,125.14 : 550,804.66 = 217,848.96 : x - Step 2: Convert to fraction form
399,125.14/550,804.66 = 217,848.96/x - Step 3: Cross multiply
399,125.14x = 550,804.66 × 217,848.96 - Step 4: Simplify right side
399,125.14x = 119,992,221,799.53 - Step 5: Solve for x
x = 119,992,221,799.53/399,125.14 - Step 6: Final answer
x = 300,638.10
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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.