Finding the Fourth Proportional to 211,807.50, 317,643.93 and 69,619.95
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Solution
The fourth proportional to 211,807.50, 317,643.93 and 69,619.95 is: 104,407.80
Step by Step Solution
- Step 1: Write the proportion equation
211,807.50 : 317,643.93 = 69,619.95 : x - Step 2: Convert to fraction form
211,807.50/317,643.93 = 69,619.95/x - Step 3: Cross multiply
211,807.50x = 317,643.93 × 69,619.95 - Step 4: Simplify right side
211,807.50x = 22,114,354,524.40 - Step 5: Solve for x
x = 22,114,354,524.40/211,807.50 - Step 6: Final answer
x = 104,407.80
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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.