Finding the Fourth Proportional to 304,857.34, 420,773.06 and 202,887.05
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Solution
The fourth proportional to 304,857.34, 420,773.06 and 202,887.05 is: 280,030.67
Step by Step Solution
- Step 1: Write the proportion equation
304,857.34 : 420,773.06 = 202,887.05 : x - Step 2: Convert to fraction form
304,857.34/420,773.06 = 202,887.05/x - Step 3: Cross multiply
304,857.34x = 420,773.06 × 202,887.05 - Step 4: Simplify right side
304,857.34x = 85,369,403,266.23 - Step 5: Solve for x
x = 85,369,403,266.23/304,857.34 - Step 6: Final answer
x = 280,030.67
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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.