Finding the Fourth Proportional to 283,220.49, 390,844.06 and 155,896.08
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Solution
The fourth proportional to 283,220.49, 390,844.06 and 155,896.08 is: 215,136.47
Step by Step Solution
- Step 1: Write the proportion equation
283,220.49 : 390,844.06 = 155,896.08 : x - Step 2: Convert to fraction form
283,220.49/390,844.06 = 155,896.08/x - Step 3: Cross multiply
283,220.49x = 390,844.06 × 155,896.08 - Step 4: Simplify right side
283,220.49x = 60,931,056,845.28 - Step 5: Solve for x
x = 60,931,056,845.28/283,220.49 - Step 6: Final answer
x = 215,136.47
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.