Finding the Fourth Proportional to 283,233.38, 390,862.06 and 155,908.97
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Solution
The fourth proportional to 283,233.38, 390,862.06 and 155,908.97 is: 215,154.38
Step by Step Solution
- Step 1: Write the proportion equation
283,233.38 : 390,862.06 = 155,908.97 : x - Step 2: Convert to fraction form
283,233.38/390,862.06 = 155,908.97/x - Step 3: Cross multiply
283,233.38x = 390,862.06 × 155,908.97 - Step 4: Simplify right side
283,233.38x = 60,938,900,407.13 - Step 5: Solve for x
x = 60,938,900,407.13/283,233.38 - Step 6: Final answer
x = 215,154.38
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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.