Finding the Fourth Proportional to 321,349.80, 482,024.70 and 155,461.80
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Solution
The fourth proportional to 321,349.80, 482,024.70 and 155,461.80 is: 233,192.70
Step by Step Solution
- Step 1: Write the proportion equation
321,349.80 : 482,024.70 = 155,461.80 : x - Step 2: Convert to fraction form
321,349.80/482,024.70 = 155,461.80/x - Step 3: Cross multiply
321,349.80x = 482,024.70 × 155,461.80 - Step 4: Simplify right side
321,349.80x = 74,936,427,506.46 - Step 5: Solve for x
x = 74,936,427,506.46/321,349.80 - Step 6: Final answer
x = 233,192.70
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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.