Finding the Fourth Proportional to 425,988.30, 587,820.74 and 251,531.31
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Solution
The fourth proportional to 425,988.30, 587,820.74 and 251,531.31 is: 347,087.75
Step by Step Solution
- Step 1: Write the proportion equation
425,988.30 : 587,820.74 = 251,531.31 : x - Step 2: Convert to fraction form
425,988.30/587,820.74 = 251,531.31/x - Step 3: Cross multiply
425,988.30x = 587,820.74 × 251,531.31 - Step 4: Simplify right side
425,988.30x = 147,855,319,519.71 - Step 5: Solve for x
x = 147,855,319,519.71/425,988.30 - Step 6: Final answer
x = 347,087.75
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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.