Finding the Fourth Proportional to 397,860.80, 549,119.07 and 254,615.94
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Solution
The fourth proportional to 397,860.80, 549,119.07 and 254,615.94 is: 351,415.55
Step by Step Solution
- Step 1: Write the proportion equation
397,860.80 : 549,119.07 = 254,615.94 : x - Step 2: Convert to fraction form
397,860.80/549,119.07 = 254,615.94/x - Step 3: Cross multiply
397,860.80x = 549,119.07 × 254,615.94 - Step 4: Simplify right side
397,860.80x = 139,814,468,179.98 - Step 5: Solve for x
x = 139,814,468,179.98/397,860.80 - Step 6: Final answer
x = 351,415.55
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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.