Finding the Fourth Proportional to 266,235.18, 399,469.85 and 139,846.08
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Solution
The fourth proportional to 266,235.18, 399,469.85 and 139,846.08 is: 209,830.62
Step by Step Solution
- Step 1: Write the proportion equation
266,235.18 : 399,469.85 = 139,846.08 : x - Step 2: Convert to fraction form
266,235.18/399,469.85 = 139,846.08/x - Step 3: Cross multiply
266,235.18x = 399,469.85 × 139,846.08 - Step 4: Simplify right side
266,235.18x = 55,864,291,901.46 - Step 5: Solve for x
x = 55,864,291,901.46/266,235.18 - Step 6: Final answer
x = 209,830.62
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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.