Finding the Fourth Proportional to 379,697.34, 569,370.70 and 139,750.98
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Solution
The fourth proportional to 379,697.34, 569,370.70 and 139,750.98 is: 209,561.95
Step by Step Solution
- Step 1: Write the proportion equation
379,697.34 : 569,370.70 = 139,750.98 : x - Step 2: Convert to fraction form
379,697.34/569,370.70 = 139,750.98/x - Step 3: Cross multiply
379,697.34x = 569,370.70 × 139,750.98 - Step 4: Simplify right side
379,697.34x = 79,570,113,308.29 - Step 5: Solve for x
x = 79,570,113,308.29/379,697.34 - Step 6: Final answer
x = 209,561.95
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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.