Finding the Fourth Proportional to 305,379.29, 457,968.65 and 102,921.08
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Solution
The fourth proportional to 305,379.29, 457,968.65 and 102,921.08 is: 154,347.81
Step by Step Solution
- Step 1: Write the proportion equation
305,379.29 : 457,968.65 = 102,921.08 : x - Step 2: Convert to fraction form
305,379.29/457,968.65 = 102,921.08/x - Step 3: Cross multiply
305,379.29x = 457,968.65 × 102,921.08 - Step 4: Simplify right side
305,379.29x = 47,134,625,259.69 - Step 5: Solve for x
x = 47,134,625,259.69/305,379.29 - Step 6: Final answer
x = 154,347.81
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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.