Finding the Fourth Proportional to 313,979.70, 433,139.64 and 186,565.08
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Solution
The fourth proportional to 313,979.70, 433,139.64 and 186,565.08 is: 257,369.29
Step by Step Solution
- Step 1: Write the proportion equation
313,979.70 : 433,139.64 = 186,565.08 : x - Step 2: Convert to fraction form
313,979.70/433,139.64 = 186,565.08/x - Step 3: Cross multiply
313,979.70x = 433,139.64 × 186,565.08 - Step 4: Simplify right side
313,979.70x = 80,808,731,587.77 - Step 5: Solve for x
x = 80,808,731,587.77/313,979.70 - Step 6: Final answer
x = 257,369.29
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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.