Finding the Fourth Proportional to 216,267.28, 323,965.95 and 107,869.84
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Solution
The fourth proportional to 216,267.28, 323,965.95 and 107,869.84 is: 161,587.81
Step by Step Solution
- Step 1: Write the proportion equation
216,267.28 : 323,965.95 = 107,869.84 : x - Step 2: Convert to fraction form
216,267.28/323,965.95 = 107,869.84/x - Step 3: Cross multiply
216,267.28x = 323,965.95 × 107,869.84 - Step 4: Simplify right side
216,267.28x = 34,946,155,191.95 - Step 5: Solve for x
x = 34,946,155,191.95/216,267.28 - Step 6: Final answer
x = 161,587.81
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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.