Finding the Fourth Proportional to 306,760.20, 460,140.30 and 212,281.80
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Solution
The fourth proportional to 306,760.20, 460,140.30 and 212,281.80 is: 318,422.70
Step by Step Solution
- Step 1: Write the proportion equation
306,760.20 : 460,140.30 = 212,281.80 : x - Step 2: Convert to fraction form
306,760.20/460,140.30 = 212,281.80/x - Step 3: Cross multiply
306,760.20x = 460,140.30 × 212,281.80 - Step 4: Simplify right side
306,760.20x = 97,679,411,136.54 - Step 5: Solve for x
x = 97,679,411,136.54/306,760.20 - Step 6: Final answer
x = 318,422.70
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1.5x scale
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.