Finding the Fourth Proportional to 320,139.84, 480,282.72 and 109,765.08
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Solution
The fourth proportional to 320,139.84, 480,282.72 and 109,765.08 is: 164,672.64
Step by Step Solution
- Step 1: Write the proportion equation
320,139.84 : 480,282.72 = 109,765.08 : x - Step 2: Convert to fraction form
320,139.84/480,282.72 = 109,765.08/x - Step 3: Cross multiply
320,139.84x = 480,282.72 × 109,765.08 - Step 4: Simplify right side
320,139.84x = 52,718,271,183.42 - Step 5: Solve for x
x = 52,718,271,183.42/320,139.84 - Step 6: Final answer
x = 164,672.64
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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.