Finding the Fourth Proportional to 282,807.36, 390,264.12 and 155,481.96
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Solution
The fourth proportional to 282,807.36, 390,264.12 and 155,481.96 is: 214,559.59
Step by Step Solution
- Step 1: Write the proportion equation
282,807.36 : 390,264.12 = 155,481.96 : x - Step 2: Convert to fraction form
282,807.36/390,264.12 = 155,481.96/x - Step 3: Cross multiply
282,807.36x = 390,264.12 × 155,481.96 - Step 4: Simplify right side
282,807.36x = 60,679,030,295.28 - Step 5: Solve for x
x = 60,679,030,295.28/282,807.36 - Step 6: Final answer
x = 214,559.59
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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.