Finding the Fourth Proportional to 312,901.18, 469,369.91 and 120,776.70
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Solution
The fourth proportional to 312,901.18, 469,369.91 and 120,776.70 is: 181,172.06
Step by Step Solution
- Step 1: Write the proportion equation
312,901.18 : 469,369.91 = 120,776.70 : x - Step 2: Convert to fraction form
312,901.18/469,369.91 = 120,776.70/x - Step 3: Cross multiply
312,901.18x = 469,369.91 × 120,776.70 - Step 4: Simplify right side
312,901.18x = 56,688,950,871.18 - Step 5: Solve for x
x = 56,688,950,871.18/312,901.18 - Step 6: Final answer
x = 181,172.06
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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.