Finding the Fourth Proportional to 258,352.65, 387,603.09 and 108,515.88
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Solution
The fourth proportional to 258,352.65, 387,603.09 and 108,515.88 is: 162,804.95
Step by Step Solution
- Step 1: Write the proportion equation
258,352.65 : 387,603.09 = 108,515.88 : x - Step 2: Convert to fraction form
258,352.65/387,603.09 = 108,515.88/x - Step 3: Cross multiply
258,352.65x = 387,603.09 × 108,515.88 - Step 4: Simplify right side
258,352.65x = 42,061,090,402.07 - Step 5: Solve for x
x = 42,061,090,402.07/258,352.65 - Step 6: Final answer
x = 162,804.95
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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.