Finding the Fourth Proportional to 282,813.13, 390,283.10 and 155,496.79
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Solution
The fourth proportional to 282,813.13, 390,283.10 and 155,496.79 is: 214,586.11
Step by Step Solution
- Step 1: Write the proportion equation
282,813.13 : 390,283.10 = 155,496.79 : x - Step 2: Convert to fraction form
282,813.13/390,283.10 = 155,496.79/x - Step 3: Cross multiply
282,813.13x = 390,283.10 × 155,496.79 - Step 4: Simplify right side
282,813.13x = 60,687,769,241.25 - Step 5: Solve for x
x = 60,687,769,241.25/282,813.13 - Step 6: Final answer
x = 214,586.11
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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.