Finding the Fourth Proportional to 415,372.91, 573,405.97 and 243,266.95
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Solution
The fourth proportional to 415,372.91, 573,405.97 and 243,266.95 is: 335,820.45
Step by Step Solution
- Step 1: Write the proportion equation
415,372.91 : 573,405.97 = 243,266.95 : x - Step 2: Convert to fraction form
415,372.91/573,405.97 = 243,266.95/x - Step 3: Cross multiply
415,372.91x = 573,405.97 × 243,266.95 - Step 4: Simplify right side
415,372.91x = 139,490,718,773.00 - Step 5: Solve for x
x = 139,490,718,773.00/415,372.91 - Step 6: Final answer
x = 335,820.45
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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.