Finding the Fourth Proportional to 402,505.08, 603,778.26 and 102,988.20
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Solution
The fourth proportional to 402,505.08, 603,778.26 and 102,988.20 is: 154,487.58
Step by Step Solution
- Step 1: Write the proportion equation
402,505.08 : 603,778.26 = 102,988.20 : x - Step 2: Convert to fraction form
402,505.08/603,778.26 = 102,988.20/x - Step 3: Cross multiply
402,505.08x = 603,778.26 × 102,988.20 - Step 4: Simplify right side
402,505.08x = 62,182,036,196.53 - Step 5: Solve for x
x = 62,182,036,196.53/402,505.08 - Step 6: Final answer
x = 154,487.58
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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.