Finding the Fourth Proportional to 342,139.70, 513,209.55 and 202,171.70
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Solution
The fourth proportional to 342,139.70, 513,209.55 and 202,171.70 is: 303,257.55
Step by Step Solution
- Step 1: Write the proportion equation
342,139.70 : 513,209.55 = 202,171.70 : x - Step 2: Convert to fraction form
342,139.70/513,209.55 = 202,171.70/x - Step 3: Cross multiply
342,139.70x = 513,209.55 × 202,171.70 - Step 4: Simplify right side
342,139.70x = 103,756,447,179.74 - Step 5: Solve for x
x = 103,756,447,179.74/342,139.70 - Step 6: Final answer
x = 303,257.55
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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.