Finding the Fourth Proportional to 316,326.34, 474,491.33 and 129,337.84
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Solution
The fourth proportional to 316,326.34, 474,491.33 and 129,337.84 is: 194,007.50
Step by Step Solution
- Step 1: Write the proportion equation
316,326.34 : 474,491.33 = 129,337.84 : x - Step 2: Convert to fraction form
316,326.34/474,491.33 = 129,337.84/x - Step 3: Cross multiply
316,326.34x = 474,491.33 × 129,337.84 - Step 4: Simplify right side
316,326.34x = 61,369,683,720.93 - Step 5: Solve for x
x = 61,369,683,720.93/316,326.34 - Step 6: Final answer
x = 194,007.50
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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.