Finding the Fourth Proportional to 178,686.78, 246,590.64 and 98,121.75
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Solution
The fourth proportional to 178,686.78, 246,590.64 and 98,121.75 is: 135,409.60
Step by Step Solution
- Step 1: Write the proportion equation
178,686.78 : 246,590.64 = 98,121.75 : x - Step 2: Convert to fraction form
178,686.78/246,590.64 = 98,121.75/x - Step 3: Cross multiply
178,686.78x = 246,590.64 × 98,121.75 - Step 4: Simplify right side
178,686.78x = 24,195,905,130.42 - Step 5: Solve for x
x = 24,195,905,130.42/178,686.78 - Step 6: Final answer
x = 135,409.60
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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.