Finding the Fourth Proportional to 212,496.60, 318,668.36 and 70,315.63
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Solution
The fourth proportional to 212,496.60, 318,668.36 and 70,315.63 is: 105,448.12
Step by Step Solution
- Step 1: Write the proportion equation
212,496.60 : 318,668.36 = 70,315.63 : x - Step 2: Convert to fraction form
212,496.60/318,668.36 = 70,315.63/x - Step 3: Cross multiply
212,496.60x = 318,668.36 × 70,315.63 - Step 4: Simplify right side
212,496.60x = 22,407,367,402.41 - Step 5: Solve for x
x = 22,407,367,402.41/212,496.60 - Step 6: Final answer
x = 105,448.12
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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.