Finding the Fourth Proportional to 230,677.08, 318,336.68 and 128,701.68
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Solution
The fourth proportional to 230,677.08, 318,336.68 and 128,701.68 is: 177,609.61
Step by Step Solution
- Step 1: Write the proportion equation
230,677.08 : 318,336.68 = 128,701.68 : x - Step 2: Convert to fraction form
230,677.08/318,336.68 = 128,701.68/x - Step 3: Cross multiply
230,677.08x = 318,336.68 × 128,701.68 - Step 4: Simplify right side
230,677.08x = 40,970,465,521.62 - Step 5: Solve for x
x = 40,970,465,521.62/230,677.08 - Step 6: Final answer
x = 177,609.61
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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.