Finding the Fourth Proportional to 316,312.53, 474,469.11 and 129,324.03
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Solution
The fourth proportional to 316,312.53, 474,469.11 and 129,324.03 is: 193,986.17
Step by Step Solution
- Step 1: Write the proportion equation
316,312.53 : 474,469.11 = 129,324.03 : x - Step 2: Convert to fraction form
316,312.53/474,469.11 = 129,324.03/x - Step 3: Cross multiply
316,312.53x = 474,469.11 × 129,324.03 - Step 4: Simplify right side
316,312.53x = 61,360,257,415.71 - Step 5: Solve for x
x = 61,360,257,415.71/316,312.53 - Step 6: Final answer
x = 193,986.17
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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.