Finding the Fourth Proportional to 316,295.91, 474,443.46 and 79,638.62
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Solution
The fourth proportional to 316,295.91, 474,443.46 and 79,638.62 is: 119,457.82
Step by Step Solution
- Step 1: Write the proportion equation
316,295.91 : 474,443.46 = 79,638.62 : x - Step 2: Convert to fraction form
316,295.91/474,443.46 = 79,638.62/x - Step 3: Cross multiply
316,295.91x = 474,443.46 × 79,638.62 - Step 4: Simplify right side
316,295.91x = 37,784,020,050.21 - Step 5: Solve for x
x = 37,784,020,050.21/316,295.91 - Step 6: Final answer
x = 119,457.82
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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.