Finding the Fourth Proportional to 210,122.20, 289,956.42 and 119,465.08
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Solution
The fourth proportional to 210,122.20, 289,956.42 and 119,465.08 is: 164,854.86
Step by Step Solution
- Step 1: Write the proportion equation
210,122.20 : 289,956.42 = 119,465.08 : x - Step 2: Convert to fraction form
210,122.20/289,956.42 = 119,465.08/x - Step 3: Cross multiply
210,122.20x = 289,956.42 × 119,465.08 - Step 4: Simplify right side
210,122.20x = 34,639,666,911.81 - Step 5: Solve for x
x = 34,639,666,911.81/210,122.20 - Step 6: Final answer
x = 164,854.86
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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.