Finding the Fourth Proportional to 353,153.13, 529,729.71 and 90,497.13
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Solution
The fourth proportional to 353,153.13, 529,729.71 and 90,497.13 is: 135,745.70
Step by Step Solution
- Step 1: Write the proportion equation
353,153.13 : 529,729.71 = 90,497.13 : x - Step 2: Convert to fraction form
353,153.13/529,729.71 = 90,497.13/x - Step 3: Cross multiply
353,153.13x = 529,729.71 × 90,497.13 - Step 4: Simplify right side
353,153.13x = 47,939,018,430.73 - Step 5: Solve for x
x = 47,939,018,430.73/353,153.13 - Step 6: Final answer
x = 135,745.70
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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.