Finding the Fourth Proportional to 228,928.74, 343,346.34 and 86,724.99
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Solution
The fourth proportional to 228,928.74, 343,346.34 and 86,724.99 is: 130,069.77
Step by Step Solution
- Step 1: Write the proportion equation
228,928.74 : 343,346.34 = 86,724.99 : x - Step 2: Convert to fraction form
228,928.74/343,346.34 = 86,724.99/x - Step 3: Cross multiply
228,928.74x = 343,346.34 × 86,724.99 - Step 4: Simplify right side
228,928.74x = 29,776,707,903.04 - Step 5: Solve for x
x = 29,776,707,903.04/228,928.74 - Step 6: Final answer
x = 130,069.77
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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.