Finding the Fourth Proportional to 307,903.20, 461,854.80 and 202,783.20
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Solution
The fourth proportional to 307,903.20, 461,854.80 and 202,783.20 is: 304,174.80
Step by Step Solution
- Step 1: Write the proportion equation
307,903.20 : 461,854.80 = 202,783.20 : x - Step 2: Convert to fraction form
307,903.20/461,854.80 = 202,783.20/x - Step 3: Cross multiply
307,903.20x = 461,854.80 × 202,783.20 - Step 4: Simplify right side
307,903.20x = 93,656,394,279.36 - Step 5: Solve for x
x = 93,656,394,279.36/307,903.20 - Step 6: Final answer
x = 304,174.80
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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.