Finding the Fourth Proportional to 212,140.98, 292,817.80 and 139,599.80
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Solution
The fourth proportional to 212,140.98, 292,817.80 and 139,599.80 is: 192,689.34
Step by Step Solution
- Step 1: Write the proportion equation
212,140.98 : 292,817.80 = 139,599.80 : x - Step 2: Convert to fraction form
212,140.98/292,817.80 = 139,599.80/x - Step 3: Cross multiply
212,140.98x = 292,817.80 × 139,599.80 - Step 4: Simplify right side
212,140.98x = 40,877,306,316.44 - Step 5: Solve for x
x = 40,877,306,316.44/212,140.98 - Step 6: Final answer
x = 192,689.34
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1.5x scale
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.