Finding the Fourth Proportional to 345,765.84, 518,289.12 and 145,919.40
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Solution
The fourth proportional to 345,765.84, 518,289.12 and 145,919.40 is: 218,727.33
Step by Step Solution
- Step 1: Write the proportion equation
345,765.84 : 518,289.12 = 145,919.40 : x - Step 2: Convert to fraction form
345,765.84/518,289.12 = 145,919.40/x - Step 3: Cross multiply
345,765.84x = 518,289.12 × 145,919.40 - Step 4: Simplify right side
345,765.84x = 75,628,437,416.93 - Step 5: Solve for x
x = 75,628,437,416.93/345,765.84 - Step 6: Final answer
x = 218,727.33
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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.