Finding the Fourth Proportional to 210,954.28, 316,434.66 and 84,605.68
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Solution
The fourth proportional to 210,954.28, 316,434.66 and 84,605.68 is: 126,909.82
Step by Step Solution
- Step 1: Write the proportion equation
210,954.28 : 316,434.66 = 84,605.68 : x - Step 2: Convert to fraction form
210,954.28/316,434.66 = 84,605.68/x - Step 3: Cross multiply
210,954.28x = 316,434.66 × 84,605.68 - Step 4: Simplify right side
210,954.28x = 26,772,169,584.87 - Step 5: Solve for x
x = 26,772,169,584.87/210,954.28 - Step 6: Final answer
x = 126,909.82
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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.