Finding the Fourth Proportional to 258,778.95, 387,937.58 and 100,970.70
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Solution
The fourth proportional to 258,778.95, 387,937.58 and 100,970.70 is: 151,365.98
Step by Step Solution
- Step 1: Write the proportion equation
258,778.95 : 387,937.58 = 100,970.70 : x - Step 2: Convert to fraction form
258,778.95/387,937.58 = 100,970.70/x - Step 3: Cross multiply
258,778.95x = 387,937.58 × 100,970.70 - Step 4: Simplify right side
258,778.95x = 39,170,328,504.05 - Step 5: Solve for x
x = 39,170,328,504.05/258,778.95 - Step 6: Final answer
x = 151,365.98
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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.