Finding the Fourth Proportional to 512,140.23, 768,334.95 and 170,582.81
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Solution
The fourth proportional to 512,140.23, 768,334.95 and 170,582.81 is: 255,915.71
Step by Step Solution
- Step 1: Write the proportion equation
512,140.23 : 768,334.95 = 170,582.81 : x - Step 2: Convert to fraction form
512,140.23/768,334.95 = 170,582.81/x - Step 3: Cross multiply
512,140.23x = 768,334.95 × 170,582.81 - Step 4: Simplify right side
512,140.23x = 131,064,730,950.54 - Step 5: Solve for x
x = 131,064,730,950.54/512,140.23 - Step 6: Final answer
x = 255,915.71
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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.