Finding the Fourth Proportional to 235,763.84, 353,740.08 and 86,015.36
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Solution
The fourth proportional to 235,763.84, 353,740.08 and 86,015.36 is: 129,057.45
Step by Step Solution
- Step 1: Write the proportion equation
235,763.84 : 353,740.08 = 86,015.36 : x - Step 2: Convert to fraction form
235,763.84/353,740.08 = 86,015.36/x - Step 3: Cross multiply
235,763.84x = 353,740.08 × 86,015.36 - Step 4: Simplify right side
235,763.84x = 30,427,080,327.63 - Step 5: Solve for x
x = 30,427,080,327.63/235,763.84 - Step 6: Final answer
x = 129,057.45
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.