Finding the Fourth Proportional to 486,143.88, 670,878.68 and 268,352.68
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Solution
The fourth proportional to 486,143.88, 670,878.68 and 268,352.68 is: 370,326.77
Step by Step Solution
- Step 1: Write the proportion equation
486,143.88 : 670,878.68 = 268,352.68 : x - Step 2: Convert to fraction form
486,143.88/670,878.68 = 268,352.68/x - Step 3: Cross multiply
486,143.88x = 670,878.68 × 268,352.68 - Step 4: Simplify right side
486,143.88x = 180,032,094,080.94 - Step 5: Solve for x
x = 180,032,094,080.94/486,143.88 - Step 6: Final answer
x = 370,326.77
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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.