Finding the Fourth Proportional to 342,117.99, 513,198.09 and 131,756.13
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Solution
The fourth proportional to 342,117.99, 513,198.09 and 131,756.13 is: 197,642.32
Step by Step Solution
- Step 1: Write the proportion equation
342,117.99 : 513,198.09 = 131,756.13 : x - Step 2: Convert to fraction form
342,117.99/513,198.09 = 131,756.13/x - Step 3: Cross multiply
342,117.99x = 513,198.09 × 131,756.13 - Step 4: Simplify right side
342,117.99x = 67,616,994,261.79 - Step 5: Solve for x
x = 67,616,994,261.79/342,117.99 - Step 6: Final answer
x = 197,642.32
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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.