Finding the Fourth Proportional to 282,968.68, 390,496.98 and 155,653.96
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Solution
The fourth proportional to 282,968.68, 390,496.98 and 155,653.96 is: 214,802.58
Step by Step Solution
- Step 1: Write the proportion equation
282,968.68 : 390,496.98 = 155,653.96 : x - Step 2: Convert to fraction form
282,968.68/390,496.98 = 155,653.96/x - Step 3: Cross multiply
282,968.68x = 390,496.98 × 155,653.96 - Step 4: Simplify right side
282,968.68x = 60,782,401,305.04 - Step 5: Solve for x
x = 60,782,401,305.04/282,968.68 - Step 6: Final answer
x = 214,802.58
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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.