Finding the Fourth Proportional to 316,515.84, 474,621.48 and 106,006.56
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Solution
The fourth proportional to 316,515.84, 474,621.48 and 106,006.56 is: 158,958.84
Step by Step Solution
- Step 1: Write the proportion equation
316,515.84 : 474,621.48 = 106,006.56 : x - Step 2: Convert to fraction form
316,515.84/474,621.48 = 106,006.56/x - Step 3: Cross multiply
316,515.84x = 474,621.48 × 106,006.56 - Step 4: Simplify right side
316,515.84x = 50,312,990,396.91 - Step 5: Solve for x
x = 50,312,990,396.91/316,515.84 - Step 6: Final answer
x = 158,958.84
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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.