Finding the Fourth Proportional to 342,143.70, 513,215.55 and 202,175.70
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Solution
The fourth proportional to 342,143.70, 513,215.55 and 202,175.70 is: 303,263.55
Step by Step Solution
- Step 1: Write the proportion equation
342,143.70 : 513,215.55 = 202,175.70 : x - Step 2: Convert to fraction form
342,143.70/513,215.55 = 202,175.70/x - Step 3: Cross multiply
342,143.70x = 513,215.55 × 202,175.70 - Step 4: Simplify right side
342,143.70x = 103,759,713,072.14 - Step 5: Solve for x
x = 103,759,713,072.14/342,143.70 - Step 6: Final answer
x = 303,263.55
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1.5x scale
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.