Finding the Fourth Proportional to 315,089.20, 472,201.80 and 202,423.60
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Solution
The fourth proportional to 315,089.20, 472,201.80 and 202,423.60 is: 303,357.87
Step by Step Solution
- Step 1: Write the proportion equation
315,089.20 : 472,201.80 = 202,423.60 : x - Step 2: Convert to fraction form
315,089.20/472,201.80 = 202,423.60/x - Step 3: Cross multiply
315,089.20x = 472,201.80 × 202,423.60 - Step 4: Simplify right side
315,089.20x = 95,584,788,282.48 - Step 5: Solve for x
x = 95,584,788,282.48/315,089.20 - Step 6: Final answer
x = 303,357.87
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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.