Finding the Fourth Proportional to 316,219.77, 473,999.18 and 138,577.05
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Solution
The fourth proportional to 316,219.77, 473,999.18 and 138,577.05 is: 207,720.75
Step by Step Solution
- Step 1: Write the proportion equation
316,219.77 : 473,999.18 = 138,577.05 : x - Step 2: Convert to fraction form
316,219.77/473,999.18 = 138,577.05/x - Step 3: Cross multiply
316,219.77x = 473,999.18 × 138,577.05 - Step 4: Simplify right side
316,219.77x = 65,685,407,373.93 - Step 5: Solve for x
x = 65,685,407,373.93/316,219.77 - Step 6: Final answer
x = 207,720.75
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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.