Finding the Fourth Proportional to 211,331.71, 316,471.66 and 147,854.84
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Solution
The fourth proportional to 211,331.71, 316,471.66 and 147,854.84 is: 221,414.31
Step by Step Solution
- Step 1: Write the proportion equation
211,331.71 : 316,471.66 = 147,854.84 : x - Step 2: Convert to fraction form
211,331.71/316,471.66 = 147,854.84/x - Step 3: Cross multiply
211,331.71x = 316,471.66 × 147,854.84 - Step 4: Simplify right side
211,331.71x = 46,791,864,701.84 - Step 5: Solve for x
x = 46,791,864,701.84/211,331.71 - Step 6: Final answer
x = 221,414.31
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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.