Finding the Fourth Proportional to 387,515.26, 580,731.58 and 187,782.63
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Solution
The fourth proportional to 387,515.26, 580,731.58 and 187,782.63 is: 281,411.64
Step by Step Solution
- Step 1: Write the proportion equation
387,515.26 : 580,731.58 = 187,782.63 : x - Step 2: Convert to fraction form
387,515.26/580,731.58 = 187,782.63/x - Step 3: Cross multiply
387,515.26x = 580,731.58 × 187,782.63 - Step 4: Simplify right side
387,515.26x = 109,051,303,416.46 - Step 5: Solve for x
x = 109,051,303,416.46/387,515.26 - Step 6: Final answer
x = 281,411.64
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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.