Finding the Fourth Proportional to 178,675.14, 268,012.44 and 139,261.80
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Solution
The fourth proportional to 178,675.14, 268,012.44 and 139,261.80 is: 208,892.49
Step by Step Solution
- Step 1: Write the proportion equation
178,675.14 : 268,012.44 = 139,261.80 : x - Step 2: Convert to fraction form
178,675.14/268,012.44 = 139,261.80/x - Step 3: Cross multiply
178,675.14x = 268,012.44 × 139,261.80 - Step 4: Simplify right side
178,675.14x = 37,323,894,816.79 - Step 5: Solve for x
x = 37,323,894,816.79/178,675.14 - Step 6: Final answer
x = 208,892.49
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1.5x scale
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.