Finding the Fourth Proportional to 621,176.18, 931,784.99 and 171,859.41
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Solution
The fourth proportional to 621,176.18, 931,784.99 and 171,859.41 is: 257,794.85
Step by Step Solution
- Step 1: Write the proportion equation
621,176.18 : 931,784.99 = 171,859.41 : x - Step 2: Convert to fraction form
621,176.18/931,784.99 = 171,859.41/x - Step 3: Cross multiply
621,176.18x = 931,784.99 × 171,859.41 - Step 4: Simplify right side
621,176.18x = 160,136,017,768.96 - Step 5: Solve for x
x = 160,136,017,768.96/621,176.18 - Step 6: Final answer
x = 257,794.85
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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.