Finding the Fourth Proportional to 539,998.80, 809,843.40 and 160,903.68
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Solution
The fourth proportional to 539,998.80, 809,843.40 and 160,903.68 is: 241,309.39
Step by Step Solution
- Step 1: Write the proportion equation
539,998.80 : 809,843.40 = 160,903.68 : x - Step 2: Convert to fraction form
539,998.80/809,843.40 = 160,903.68/x - Step 3: Cross multiply
539,998.80x = 809,843.40 × 160,903.68 - Step 4: Simplify right side
539,998.80x = 130,306,783,283.71 - Step 5: Solve for x
x = 130,306,783,283.71/539,998.80 - Step 6: Final answer
x = 241,309.39
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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.