Finding the Fourth Proportional to 438,177.80, 657,266.70 and 290,433.80
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Solution
The fourth proportional to 438,177.80, 657,266.70 and 290,433.80 is: 435,650.70
Step by Step Solution
- Step 1: Write the proportion equation
438,177.80 : 657,266.70 = 290,433.80 : x - Step 2: Convert to fraction form
438,177.80/657,266.70 = 290,433.80/x - Step 3: Cross multiply
438,177.80x = 657,266.70 × 290,433.80 - Step 4: Simplify right side
438,177.80x = 190,892,465,294.46 - Step 5: Solve for x
x = 190,892,465,294.46/438,177.80 - Step 6: Final answer
x = 435,650.70
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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.