Finding the Fourth Proportional to 343,911.80, 515,867.70 and 302,439.80
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Solution
The fourth proportional to 343,911.80, 515,867.70 and 302,439.80 is: 453,659.70
Step by Step Solution
- Step 1: Write the proportion equation
343,911.80 : 515,867.70 = 302,439.80 : x - Step 2: Convert to fraction form
343,911.80/515,867.70 = 302,439.80/x - Step 3: Cross multiply
343,911.80x = 515,867.70 × 302,439.80 - Step 4: Simplify right side
343,911.80x = 156,018,924,014.46 - Step 5: Solve for x
x = 156,018,924,014.46/343,911.80 - Step 6: Final answer
x = 453,659.70
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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.