Finding the Fourth Proportional to 492,542.10, 679,708.09 and 266,187.60
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Solution
The fourth proportional to 492,542.10, 679,708.09 and 266,187.60 is: 367,338.88
Step by Step Solution
- Step 1: Write the proportion equation
492,542.10 : 679,708.09 = 266,187.60 : x - Step 2: Convert to fraction form
492,542.10/679,708.09 = 266,187.60/x - Step 3: Cross multiply
492,542.10x = 679,708.09 × 266,187.60 - Step 4: Simplify right side
492,542.10x = 180,929,865,177.68 - Step 5: Solve for x
x = 180,929,865,177.68/492,542.10 - Step 6: Final answer
x = 367,338.88
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.