Finding the Fourth Proportional to 318,829.44, 478,065.60 and 147,867.84
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Solution
The fourth proportional to 318,829.44, 478,065.60 and 147,867.84 is: 221,718.95
Step by Step Solution
- Step 1: Write the proportion equation
318,829.44 : 478,065.60 = 147,867.84 : x - Step 2: Convert to fraction form
318,829.44/478,065.60 = 147,867.84/x - Step 3: Cross multiply
318,829.44x = 478,065.60 × 147,867.84 - Step 4: Simplify right side
318,829.44x = 70,690,527,650.30 - Step 5: Solve for x
x = 70,690,527,650.30/318,829.44 - Step 6: Final answer
x = 221,718.95
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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.