Finding the Fourth Proportional to 212,586.04, 318,924.03 and 70,423.26
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Solution
The fourth proportional to 212,586.04, 318,924.03 and 70,423.26 is: 105,649.78
Step by Step Solution
- Step 1: Write the proportion equation
212,586.04 : 318,924.03 = 70,423.26 : x - Step 2: Convert to fraction form
212,586.04/318,924.03 = 70,423.26/x - Step 3: Cross multiply
212,586.04x = 318,924.03 × 70,423.26 - Step 4: Simplify right side
212,586.04x = 22,459,668,953.06 - Step 5: Solve for x
x = 22,459,668,953.06/212,586.04 - Step 6: Final answer
x = 105,649.78
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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.