Finding the Fourth Proportional to 292,742.75, 403,985.13 and 158,606.75
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Solution
The fourth proportional to 292,742.75, 403,985.13 and 158,606.75 is: 218,877.39
Step by Step Solution
- Step 1: Write the proportion equation
292,742.75 : 403,985.13 = 158,606.75 : x - Step 2: Convert to fraction form
292,742.75/403,985.13 = 158,606.75/x - Step 3: Cross multiply
292,742.75x = 403,985.13 × 158,606.75 - Step 4: Simplify right side
292,742.75x = 64,074,768,517.63 - Step 5: Solve for x
x = 64,074,768,517.63/292,742.75 - Step 6: Final answer
x = 218,877.39
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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.