Finding the Fourth Proportional to 312,237.18, 430,897.74 and 191,355.12
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Solution
The fourth proportional to 312,237.18, 430,897.74 and 191,355.12 is: 264,076.46
Step by Step Solution
- Step 1: Write the proportion equation
312,237.18 : 430,897.74 = 191,355.12 : x - Step 2: Convert to fraction form
312,237.18/430,897.74 = 191,355.12/x - Step 3: Cross multiply
312,237.18x = 430,897.74 × 191,355.12 - Step 4: Simplify right side
312,237.18x = 82,454,488,745.43 - Step 5: Solve for x
x = 82,454,488,745.43/312,237.18 - Step 6: Final answer
x = 264,076.46
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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.