Finding the Fourth Proportional to 258,466.42, 387,718.12 and 68,925.78
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Solution
The fourth proportional to 258,466.42, 387,718.12 and 68,925.78 is: 103,393.60
Step by Step Solution
- Step 1: Write the proportion equation
258,466.42 : 387,718.12 = 68,925.78 : x - Step 2: Convert to fraction form
258,466.42/387,718.12 = 68,925.78/x - Step 3: Cross multiply
258,466.42x = 387,718.12 × 68,925.78 - Step 4: Simplify right side
258,466.42x = 26,723,773,841.13 - Step 5: Solve for x
x = 26,723,773,841.13/258,466.42 - Step 6: Final answer
x = 103,393.60
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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.