Finding the Fourth Proportional to 331,655.19, 457,685.69 and 188,423.09
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Solution
The fourth proportional to 331,655.19, 457,685.69 and 188,423.09 is: 260,024.72
Step by Step Solution
- Step 1: Write the proportion equation
331,655.19 : 457,685.69 = 188,423.09 : x - Step 2: Convert to fraction form
331,655.19/457,685.69 = 188,423.09/x - Step 3: Cross multiply
331,655.19x = 457,685.69 × 188,423.09 - Step 4: Simplify right side
331,655.19x = 86,238,548,728.04 - Step 5: Solve for x
x = 86,238,548,728.04/331,655.19 - Step 6: Final answer
x = 260,024.72
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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.